Silk’n Infinity 400,000 review: safe for dark & black skin

Silk'n Infinity Laura G
Silk'n Infinity


The compact, simple Silk'n Infinity uses a combination of gentle IPL and Galvanic energies. Together, they give effective hair removal that's safe for dark and black skin on the lowest intensity levels. And just as effective as other more powerful IPL devices on the higher levels. It's fast and affordable too. Read this detailed Silk'n Infinity review to learn all.

Safe for dark & black skin too

👍 Recommended for small & large areas, for ALL skin tones light to black

Several photos of the silk'n Infinity device, packaging
This review shares real-life feedback & photos.

The Silk’n Infinity uses two energies, IPL and galvanic current, that’s safe for use on body and face and on ALL skin tones, including the darkest and black.

The galvanic energy circulates through your skin opening your pores. At the same time it flashes Intense Pulsed Light (IPL). Because the pores are open, the IPL hits more of the hair and follicle than without the galvanic current. So it’s very efficient at heating and stunting the follicle. The IPL then slows and reduces hair regrowth after each treatment. Eventually hair stops growing and periodic use will keep you fuzz and stubble free. Learn more about how home IPL works here.

Fitzpatrick colour scale I to VI showing it's safe for I to VI or all skin tones
UK & European model: Safe for ALL skin tones, Fitzpatrick types I to VI light to black skin
Works on black, dark brown, mid-brown and dark blonde body hair colours. May work on light blonde, red, white or grey body hair colours, but it's not clinically proven.
Works on black to dark blonde, Silk’n say it works on fair hair too, but only in combination with lighter skin tones (but it may not!)

IMPORTANT:  Silk’n in the US and Canada promote the Infinity for safe use on light to dark skin tones (FitzPatrick types I to V), so not for the darkest and black tones. This is because it’s FDA cleared for these skin tones only. However, confirm all models will work on the darkest skin tones at intensity levels 1 or 2.

Lamp lifetime
It’s superb value with flashes to last 15+ years of use. One of the best.

Ease of use
No-frills, compact, light-weight design. Clever skin tone sensor detects darker tones and activates only the lower, safe intensities.

Medium power & gentle IPL. Get smooth with 4 treatments every 2 weeks, then switch to monthly to stay smooth. But takes longer on dark skin / lower intensties.


  • Safe for ALL skin tones including dark & black
  • Gentle IPL for painless sessions
  • Fast & affordable
  • Level 1 intensity safe for tanned skin
  • 60-day money back guarantee in the US (from


  • Not FDA-cleared for black skin (more in the review)
  • Tricky on upper lip
  • No money back guarantee in the UK & Europe

Price from £140 to £309

View deals: | Amazon | (US only) | Limited Edition packs

In this Silk’n Infinity review:

— What’s it like? —

First impressions

The Silk’n Infinity comes in a neat, hot pink and white box weighing just over 1 kg.

Photo of the Silkn Infinity box front.
The box is sturdy and has a slide off info sleeve printed in several languages.
The box prominently says ‘Permanent hair removal’. However, it’s more accurate to say ‘permanent hair reduction’ like other home devices.

The box shows all the key info including skin colour and hair colour chart, body areas you can treat, simple steps to use it and a diagram explaining eHPL (galvanic and IPL energies).

close up photo of the diagram on the back of the Silkn Infinity box.
Diagram explaining eHPL (galvanic and IPL energies).

Remove the two clear sticky tabs and the information sleeve slides off. Underneath is a strong pink and white cardboard box. Inside this is the sturdy silver storage case.

I like that there’s very little plastic because the storage case keeps everything covered, clean and together.

Photos of opening the packaging, down to the devices silver storage case.
It’s a pleasure opening the Silk’n Infinity to reveal the compact, sturdy silver storage case. All of the packaging around it is recyclable card board. Top marks.
Various photos of the shimmery silver storage case. It's a thoughtful extra from Silkn.
The storage case is lovely quality with a silky feel, strong zip, sliver and white stitched Silk’n logo on top, and glossy silver and white Silk’n label.
Photo of opening the storage case lid and the contents inside. It's neat and sturdy. Everything in its right place.
Un-zip the lid and inside is the Silk’n Infinity device and power cable nestled in a secure moulded bed.
Photo of the shimmery silver storage case and the contents. It's a pleasure to open.
Remove the protective foam from the inner lid to see a fabric sleeve where you can keep the user manual, warranty card and cleaning cloth.

Everything is neat and in its place. The storage case is a super extra from Silk’n. The full contents inside the storage case are shown below:

Top-down photo of the storage box contents on white background: power adaptor with UK, European and US plug adaptors, cleaning cloth in protective plastic, compact white Silk'n Infinity device, warranty card and multi-language user instruction booklet.
The Silk’n Infinity box contents.

What’s in the box?

  • Silk’n Infinity 400,000 device
  • Mains adaptor with UK, europe and US plugs
  • User manual
  • Warranty card
  • Hard zip-up storage case
  • Cleaning cloth

A cleansing box and 2 x LR03 (AAA) batteries can be purchased with some models.

The Infinity device is slightly bigger than I expected, but still compact compared to other devices. It’s light-weight, smooth to the touch and very easy to manoeuvre. I like the clean, curvy lines and minimalist design with only a simple ‘Silk’n Infinity’ logo and large flash button.

Photo of my right hand holding the Infinity in an easy grip with my thumb on the flash button and fingers underneath
The mains-powered Infinity weighs 228 g and looks like a smooth white pebble.

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Before you start

Let’s start with the user manual.

Read the user manual

Photo of the small but thick multi-language instruction booklet and Silk'n warranty card.
The Silk’n Infinity user manual and Silk’n warranty card (UK and Europe).

The Silk’n Infinity user manual is an easy read (UK and European version).

It has helpful photos and diagrams to help get you acquainted with the device and is presented in a logical order. It describes the possible side effects and shares the Silk’n clinical study results as a guide to expected long-term hair removal results. Then it describes step-by-step how to use it and what to expect during the treatments.

It starts with important warnings and reasons the Infinity may not be safe or suitable for you. These include being pregnant, having epilepsy, taking photosensitising medications, skin conditions, on tattoos or after skin peels plus more. It’s important to check through these to stay safe.

You can learn more about general contraindications for home IPL here. But be sure to check the user manual on Silk’n US website and Silk’n UK website or in the APP before you buy.

There’s also some important tanning advice in the user manual too.

Important: Tanning and IPL

IPL and sun exposure don’t mix so Silk’n warn not to use the Infinity on sun exposed skin (except on level 1 – keep reading to learn more).

  • Wait at least 4 weeks since sun exposure or sunbathing before using it.
  • Cover-up and avoid sun exposure on treated areas for at least 2 weeks after your treatment.
  • Apply SPF 30+ sun protection for the duration of your regimen.

But there is one key exception.

Silk’n UK and Europe advise you can use the Infinity after sun bathing and sun exposure, but only on intensity level 1.

This means you can keep using the Infinity in Summer months for maintenance treatments to keep your skin smooth. Then, in the winter months, use your usual intensity level again. 

PLEASE NOTE: Silk’ US and Canada don’t advertise you can can use level 1 on suntanned skin because it’s not FDA cleared as such.

Do a skin patch test

The skin tone chart at the start of the manual recommends which intensity levels are safe for your skin tone.

Skin tone & intensity level chart from the user manual.

The user manual says to do skin patch tests starting at level 1 and at each higher level that’s noted safe for your skin tone, or that you find comfortable. Do this for each individual body area. Wait 1 hour and if it’s all clear you can select your preferred level and start with your full treatment.

Shave before use

Shave each area before every treatment. Your skin must be totally smooth before you start zapping.  Don’t wax or epilate.

If there’s any hair left on the skin surface it can sting when zapped! Also, the IPL energy needs to go deeper into the follicle (the bit below your skin). It’s down there it works to heat up specific areas, damage them and stop hair growth. So a clean shave makes this much more efficient.

  • Use a sharp razor for a clean, close shave
  • Use a gel, foam or just hair conditioner to moisturise and protect your skin
  • Take your time to remove all hair without any cuts!
  • If you don’t want to shave your face, try this instead


Next, find a comfy and private spot to do your treatment.

Some people choose the sofa and watch some TV at the same time.  Others need more privacy so choose the bathroom or their bedroom. Here are a few tips to help you get started.

  • In front of a mirror: A full-length mirror is very helpful for underarms, a thorough bikini line, bum and backs of legs
  • A mains extension cable: the Infinity has a 180 cm long power cord, but an extension cable from the mains gives you even more flexibility
  • Find privacy: back to the bikini line again! It’s far from elegant and not something you’ll want to share with housemates, kids, window cleaner etc. The privacy of your bedroom is often best
  • Choose the right time: you don’t want to be rushed or interrupted, so do it when you have plenty of time and kiddies are tucked up in bed

Once you’ve got the right spot, you’re ready to get started.


Just follow these steps:

  1. Shave before every treatment (unless there’s no hair left!)
  2. Plug in and press the power button. You’ll hear the fan start up inside, the level one intensity light illumiates and then the ready light flashes
  3. Select your intensity level by pressing the power button to cycle through the levels
  4. Position flat on your skin at a 90-degree angle, and with your thumb or fingers on the silver base plate, press the large flash button.
  5. Slide to the next spot and repeat. Cover your skin in adjoining flashes avoiding overlap.

When you’re done, unplug from the mains and the Infinity powers down. Apply a body moisturiser immediately after as the Galvanic current opens your pores making your skin is extra absorbant!

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Lamp lifetime

The lamp lifetime from the Infinity is hard to beat.

You get 400,000 flashes and a 2.7 cm2 flash window so you can cover a massive total body area of 1,080,000 cm2. That’s enough for more than 200 full body treatments (full legs, bikini line, underarms and face). It’ll last 15+ years of monthly use after completing the start-up phase.

Bar chart showing the lamplifetime value of the Silk'n Infinity 400,000 compared to other devices. It's ace!
This chart shows how long the Silk’n Infinity lasts compared to other devices. The lamp lifetime value is fantastic. It’s one of the best.

It’s so good you could share it with a significant other and still experience smooth, hair-free skin for decades. And to ensure it’s hygienic to share, Silk’n also sell the Infinity with a cleansing box. It’s a base box the unit sits in to disinfect the flash window between uses. That’s a nice touch.

N.B. I’ve used only the bulb life to calculate the years of use. General usage and wear and tear can also affect how long the machine keeps working.

Is it easy to use?

Shape and design

The compact Infinity device is simple, clean, functional and feels good to hold. It’s a curvier, more attractive design compared to the earlier Silk’n models.

The curvy shape fits comfortably in your hand. It’s like a large smooth white pebble.

It’s slightly curved over the top where the large, square flash activation button is. And wider and rounded at the base where the power cable fits snug. This is also where the simple controls are tucked away.

The airvents, silver Glavanic plate and simple controls on the underside of the Infinity. The business end tapers to the flash window.
The under-side has a slight indent on the silver base electrode plate which provides a natural, comfortable grip.
Photo of my right hand holding the Infinity in a comfortable grip with my fingers on the flash button.
You can hold the Infinity either with your thumb on the flash button (as above) or your fingers on it instead. Both grips are comfortable and without strain.

The design is clean and simple but not flimsy. It feels like a smooth and lightweight electric shaver or epilator.


Mains-power operation means you simply plug it in and go. And the power cord is long enough at 180 cm. But a helpful tip is to use an extension cable so you can sit anywhere. For example next to a full-length mirror or on your bed.

close up photo of the power cable and top down view of the cable with the adaptors
The power cable is 180 cm long, feels good quality and is thick enough.

You get 3 inter-changeable plug adaptors with the Infinity; a UK, European and US adaptor. They’re easy to change and handy if youre travelling. They all fit neatly in the storage case.

close up photo of the Infinity's mains adaptor plug 'open' button which lets you easily switch the plug adaptors
Slide the ‘open’ button and the adaptor pops out. Take another plug and slide the lip at the top in first and then push in at the bottom. Simples.

Multi-use flash window

The Infinity has one 2.7 cm2 flash window. This is a decent size for larger areas and small enough to treat more awkward areas like your upper lip (with a bit of practise).

Hand holding the Infinity flash window toward the camera in close up.
The 2.7 cm2 (0.9cm x 3cm) flash window. The silver border is the galvanic ‘touch electrode’ and the smaller oblong opening is the skin tone sensor window.

It takes just a short while getting used to sliding the window 1 cm along your skin (the height of the flash window) to get accurate coverage.

Next, what is this galvanic stuff anyway?

Five IPL levels & galvanic circulation

5 close up photos of a finger pressing the power button to select each intensity level in turn.
Press the power button to cycle up the levels to 5 and back to 1 again.

The Silk’n Infinity has the standard 5 IPL intensity levels. But it’s different to other home IPL devices because it also uses galvanic energy.

Galvanic energy is a very low electrical current passed through the skin. It’s widely used in cosmetic treatments for a few decades now. You can’t feel the current, but it temporarily dilates (opens) your pores.

Wider open pores uncovers more of the hair follicle so it absorbs more IPL energy. It coverts to heat and damages the follicle. This slows and then stops hair growth.

With these very effective combined energies, the Infinity can use gentler and less intense IPL energy and still get the same results as more powerful devices.

The lowest IPL level on the Infinity is  3 J/cm2. This is effective and safe for dark and black skin (as well as light and medium skin tones too).

The Infinity has a high of 4 J/cm2. This is safe for lighter tones. It’s less intense than most other home devices at their top level. But don’t forget, the galvanic current gives the IPL an extra boost to match the results of more powerful devices.

And it’s good to know too that the lower IPL energy makes sessions more comfortable and reduces the risk of any side effects with the Infinity. If you’re looking for a gentle home IPL, this has got to be it.

So, what does this look like on the Infinity?

Galvanic electrodes

The silver touch electrode around the flash window and the silver base electrode plate on the bottom of the device. Touch both with your skin to complete the galvanic circuit.

The Infinity has a silver border around the flash window. It’s the ‘touch electrode’. On the bottom of the device there’s also the large silver ‘base electrode’.

When your hand has contact with the base electrode and you flash the Infinity against your skin, it completes a galvanic circuit and the energy circulates through your skin.

You won’t see the current (the’re certainly no sparks!) And you won’t feel it. It’s kind to your skin. In fact, use body lotion afterwards. Since your pores open with the galvanic current, the lotion penetrates deeply for softer, well moisturised skin.

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Is the Silk’n Infinity safe?

The Silk’n Infinity is clinically tested safe for home-use. It protects your skin and keeps it healthy with the inbuilt filter blocking UV light wavelengths.

As described above, it uses galvanic energy combined with lower IPL intensities than you’ll find in other machines. This is good for your safety because it reduces the risk of any side effects or discomfort during your sessions.

Eye safety

The Infinity has an in-built safety feature to protect your eyes. It only flashes when you press the flash button if:

  1. your skin has contact with the silver galvanic border around the flash window
  2. your thumb or fingers are touching the silver galvanic plate on the underside of the Infinity 

Touching both these galvanic electrodes completes the galvanic circuit and enables IPL flashes. This way, the flash window must be entirely covered by your skin before it’ll flash. So, you can’t accidentally flash it in open air and potentially harm into your eyes.

Skin tone sensor

The skin tone sensor protects your skin. It does this by checking the intensity level you’ve chosen is safe for your complexion.

The smaller sensor window sits just below the flash window. It tests your skin at the start, when you change intensity level and periodically throughout treatment.

If it detects the intensity level is safe for your skin tone, the Infinity will flash your skin.

If you’ve selected a level that’s too intense for the skin tone it detects, the blue skin tone warning light will flash rapidly. That’s the light in between intensity indicator lights 1 and 5. The Infinity then enables only those intensity levels safe for your skin tone. So, just select one of these lower levels and start your treatment.

Intensity levels 1 and 2 are safe for the darkest skin tones Fitzpatrick types V and VI. I checked with and they confirm all models bought from is the US and Canada are the same as the UK and European models, it’s just the marketing that’s different. So, all will work on level 1 or 2 on the darkest skin tones.

Although the skin tone sensor doesn’t choose the best intensity level for you, I do think it’s a neat little safety feature that keeps darker skin tones safe. But user manual and website could do a better job of explaining what it does.

It’s not clear enough because a few reviewers leave neutral and negative feedback saying they can’t use intensity level 5 on their darker skin. It activates levels 1 and 2 only. They don’t understand the skin tone sensor did its job to protect their dark skin!

Want proof that the silk’n Infinity works?

Is the Silk’n Infinity clinically proven?

Silk’n share the results of their clinical tests in the user manual under the ‘Treatment plan’ section. The participants all have Fitzpatrick skin types I to IV.

So, what about type V and VI? Just what proof is there it’s safe and effective on the darkest skin tones? I was a bit confused and admittedly suspicious, so I asked for the study. And Silk’n shared it. 👍

What does it say? Find out next.

Silk’n Infinity study for home-use hair removal of dark skin

The study tested the safety and how effective combined IPL and galvanic energies are on dark skin.

Graphic skin tone colour wheel chart
A small study concludes the Silk’n Infinity is safe and effective to use on all skin tones, including FitzPatrick types V and VI.

Fifteen women with skin types V and VI tested dark hair growing on their underarms. They each treated the same underarm area 6 times at 2-week intervals. They used either intensity level 1 or 2. And the results show significant hair reduction.

After 1 month the average hair count reduction was 57.3%, and 3 months after the last treatment it was 44.5%. Reassuringly, there were no unexpected side effects or skin damage.

The study concluded:

“Low energy pulsed light combined with galvanic energy may be applied safely and effectively for at-home hair removal for people with dark skin types V and VI.”

IMPORTANT: The study also shares that at the lower intensity levels (1 to 3) you’ll likely need more treatments to see the same results as experienced at the higher levels. They suggest up to 12 treatments on darker skin to see smooth results.

Study ref: Gold, M.H. and Goren, H. (2015) The Effect of Novel Low Energy Pulsed Light Combined with Gal-vanic Energy for Home-Use Hair Removal of Dark Skin. Journal of Cosmetics, Dermatological Sciences and Applications, 5, 283-290

IMPORTANT:  Silk’n in the US and Canada promote the Infinity for safe use on light to dark skin tones (FitzPatrick types I to V), so not for the darkest and black tones. This is because it’s FDA cleared for these skin tones only. However, if you’re in the USA or Canada, Infinity devices bought from will still work on the darkest skin tones.

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How fast is it?

The Infinity has the 2 standard modes of single flash (called Pulse) and continuous flashes (called Glide).

Pulse mode is best for your face and areas needing more precision. Position on your skin and when the ‘Ready’ light blinks, press and release the flash button to emit the galvanic current and IPL flash. Move it 1 cm (the height of the flash window) to the next position, and repeat.

Close up of my fingers on the large flash activation button.
Press the flash button with your fingers on the base electrode and slide it about 1 cm (the height of the flash window) to the next patch of skin in between the flashes.

Glide mode is magic on the lower energy intensity levels.

That’s because there’s a faster flash repetition rate between 1 to 1.5 seconds. Position on your skin and when ‘Ready’ light blinks press and hold the flash button to emit the galvanic current and IPL flash. After each flash slide it 1 cm (the height of the flash window) to the next position, wait for the flash and repeat. It’s not quite a smooth continuous motion, but it’s fast enough!

You can use either Pulse or Glide mode with any intensity level. Glide mode puts less strain on your grip. On the all intensity levels, you’ll pick up a rhythm with a little practise.

And it’s quick to finish a session.

It flashes every 1 to 2 seconds, and is fastest on the lower intensity levels. Combined with the 2.7 cm2 flash window it gives fast treatments.

  • Lowest intensity flashes every 0.9 seconds – that’s 66 flashes per minute to cover 178 cm2
  • Highest intensity flashes every 1.9 seconds – that’s 31 flashes per minute to cover 83.7 cm2

Silk’n say you can cover a full leg in 8 minutes, but realistically if you’re paying close attention to get good coverage it’s more like 12 minutes. Silk’n also say you can cover your full body in 20 mins. That also is a little optimistic. It was more like 40 minutes for me.

The Silk’n Infinity gives easy, fast treatment times. It’s very similar to more expensive, premium devices.

Treatment App

There’s also the Silk’n App to help manage your treatments. There’s a helpful calendar and you can schedule reminders for different body areas. You can also access your device’s user manual too.

You can also connect to your Infinity device via Bluetooth. Then you can see how many flashes you’ve used per treatment, overall and how many are left. You can also use the bluetooth connection to lock the device, preventing use by any little monsters or curious big kids.

What’s the customer support like?

The UK website is good, although I sometimes find the language exaggerated in places.

It does an adequate job of explaining the galvanic energy concept in combination with IPL. There’s also access to the user manual and an FAQ section. A link to the safety and efficacy study on dark skin would be very helpful too.

The customer service team answer questions quickly, but the depth and clarity of the responses varies. I found the pre and after sales support offered by more helpful.

Unfortunately, Silk’ don’t offer a money back guarantee in the UK or Europe. But in the US from you get 60 days.

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What to expect

The Silk’n Infinity is safe because the skin tone sensor keeps dark skin tones safe. And once you’ve confirmed your intensity level from the test patch, it’s simple and straightforward to use. Next, more about how it feels and what results to expect.

What to expect during treatments?

When you power it on you hear the quiet whirring of the cooling fan. Each press flash makes a gentle pop sound.

The flashes feel warm and a bit tingly. But it’s notable there are no user reports of any stinging sensation. Other IPL devices can smart a bit on more sensitive bits. Common areas are underarms, bikini line and ankles. The soft sensation is likely down to the gentle IPL pulses.

However, the device does heat up if using it on larger areas like legs. Therefore, it’s a good idea to start with smaller more sensitive areas if you’re treating your full body or multiple areas.

TIP: As with all home devices, make sure you get a good clean shave. This reduces any heat on your skin surface and makes the IPL energy more effective down in the follicle. Also, if you do feel it sting simply reduce the power level a notch.

The flashes are bright white too. But against your skin they’re harmless to your eyes. However, they can seem annoyingly bright. Use the Infinity in a well-lit room (so they don’t appear so intense). And you can wear sunglasses to help ease the glare.

It does take concentration to remember where you’ve zapped, especially on curvy legs. But it just takes a session or two to work out the best way to cover your skin.

What to expect after your treatments?

A common reaction the IPL with the Infinity is slight pinkness of your skin around the hair. It’s normal and should fade quickly within 24 hours.

Silk’n recommend moisturising after your session too. Not only is this soothing, but remember your skin is extra absorbent because the galvanic current opens your pores! So, get extra soft and hydrated skin from your favourite body moisturiser.

And if you go out in the sun, cover up and / or wear a high SPF 30+. This helps protect your skin from sunburn and reduces the risk of developing any of the rare side effects.

So, what are the rare side effects?

Side effects with the gentle Infinity IPL are very uncommon. In fact, when devices are used as instructed, side effects are very rare. However, there are a few you should be aware of. If you experience any, go see your doctor if they don’t fade within the times indicated.

  • Skin redness that doesn’t fade within 2 to 3 days
  • Skin sensitivity such as dryness and flaking
  • Pigment changes means darkening (hyper-pigmentation) or lightening / whitening (hypo-pigmentation) of the skin. This is usually temporary. It’s more common in darker skin tones or heavily tanned skin. In extremely rare cases it’s permanent.
  • Excessive redness and swelling can occur on more sensitive areas of the body. It should fade within 2 to 7 days of the treatment. Ease any discomfort with ice packs, gentle cleanse the area and avoid any sun exposure.
  • Burns or blisters are very uncommon with the Infinity but a possible reaction to IPL. If skin doesn’t heal within 3 days go see your doctor. You can apply ice packs and burn creams. Wait for skin to heal before doing another treatment at a lower intensity level.

A handful of reviewers found information in the user manual which deterred them from using the Infinity. Keep reading to learn about it.

Good to know

The booklet shares “Hair removal by lasers or intense pulsed light sources can cause increased hair growth in some individuals. Based upon currently available data, the highest risk groups for this response are females of Mediterranean, Middle Eastern and South Asian heritage treated on the face and neck.”

Based on reported side effects from several clinical trials, the risk of this occurring is very small. However, it’s not quantified through enough focused clinical studies.

It’s important to note, this warning applies to all laser and IPL not just the Silk’n Infinity. And none of the clinical studies for Silk’n or other home-use brands report this side effect. But you may feel it’s too risky if you have darker skin. So, you need to weigh it up and decide.

What results can I expect?

You need 4 treatments every 2 weeks, taking 6 weeks to complete. Then switch to monthly sessions until you get your smooth results. After that do maintenance top ups as you need them.

Hairs still grow in the first few weeks. However, the rate slows. Shave before your next sessions.

A few sessions in you’ll notice fewer hairs growing. They’ll be softer, finer and lighter too. And much easier to shave. Around this stage, you may not need to shave in between sessions.

After 4 sessions you should be smooth, or have just a few patches of hair. You can continue treatments every 2 weeks until you have totally smooth skin, or switch to monthly sessions to manage the stragglers.

Keep going with monthly sessions as you need them i.e. if soft growth appears. You can eventually increase the time between these top-ups to 6 or even 8 weeks. But keep doing them. Because if you don’t the hair will grow back! And the more you do the longer lasting your results become. Learn more about the importance of top-ups here.

How much effort is it?

This depends on your skin tone. On lighter skin tones it’s easy and one of the least effort. However, it’s more effort over longer for darker skin tones because you need more sessions to get to smooth.

Based on our standardised tests and the treatment plans Silk’n advise, for full body smoothness you’ll spend:

Lighter skin tones / higher intensity levels:

  • A full body session takes around 40 minutes
  • You need between 4 treatments over 6 weeks
  • 4 sessions x 40 mins = 2 hours 40 minutes
  • So, that’s 2 hours 40 minutes over 6 weeks

Darker skin tones / lower intensity levels:

  • A full body session takes around 40 minutes
  • You need between 12 treatments every 2 weeks (taking 22 weeks)
  • 12 sessions x 40 mins = 10 hours
  • So, that’s 10 hours over 22 weeks or around 5 months

For darker skin tones, it’s important to have realistic expectations about your effort needed. You need to have patience and committment to the cause. Stay strong!

Then you’ll need less frequent top up sessions every month or so. The more you do, the longer lasting your results are. So, keep going and do several of them! They’re important to keep your hair in the resting stage.

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— Online ratings & reviews —

What the online reviews say?

The average score from the collated online Silk’n Infinity reviews is a strong 4.3 stars.

User score 4.3

The positive Silk’n Infinity reviews

Over 80% of the Silk’n Infinity reviews are 4 and 5-star rated. Here’s what they like about the Silk’n Infinity.

  • It’s compact, well-made & robust
  • Extremely simple to use
  • Appealing price
  • Attractive packaging
  • Love for the hard storage case
  • Loads of flashes so you’ll never run out
  • Has a 2-pin European and 3-pin UK plug so you can use it on holiday too
  • Excellent support from
  • No reported faults

Just a couple of reviewers left negative 1 or 2-star ratings and a few more 3-star neutral reviews.

  • Problems logging into the App
  • Silk’n email support is slow
Reviewers like it comes with both a 2 pin European, 2 pin USA and 3 pin UK power plug. So it’s perfect for travelling on holiday.

So, what results do the reviewers share?


Silk’n say you need 4 treatments every 2 weeks to see noteworthy results, then monthly treatments or as you need them to maintain your results.

Several reviews are left too early during the start-up phase to see results. And more leave positive reviews and helpful feedback, but they don’t mention their results at all.

Those that do mention results say that less hair grows back slower, finer and less over time. A few say they see the effects after just a few uses. One comments the results appear in a ‘slow and gentle way’ and another recommends you to be patient.

Dark skin results

A few share their results after a few months of use and their results are good. One reviewer has dark skin and left an updated review after 3 months of use. Here’s what they say:

“I have to say that hair is not completely removed. But the quantity of hair that grows back is now considerably less.” Infinity review

In summary, there’s a sense of assured satisfaction with the Silk’n Infinity. I can see why. It’s a straightforward design at a very attractive price that gets the job done quickly. And it’s safe for darker skin tones too.

Prices & Buy Now

— In summary —

Should I buy it?

Yes. It’s safe and gentle and the best choice available for dark and black skin tones. And although theres no reassuring test data for blonde, red or grey hair, it’s the only device from a trusted brand that claims to be effective.

“Silk’n Infinity is excellent for fast full body treatments on ALL skin tones, including dark and black skin. Attractive, affordable price too.”

The Silk’n Infinity rivals premium devices because treatment times are FAST. Plus it’s safe for dark and black skin tones too. Unbeaten value.

Here’s a quick recap of the pros and cons from the review:


  • Excellent value for under £200
  • Compact, curvy, comfortable to hold and simple to operate
  • Safe for ALL skin tones, including dark & black skin
  • Smart sensor lets you use only safe intensity levels for your skin tone
  • Level 1 is safe for tanned and sun exposed skin
  • Helps absorb moisturisers for healthy skin
  • Flashes give 15+ years of monthly full body treatments
  • Sessions are fast, so perfect for full body treatments
  • Sturdy, hard zip-up storage case
  • FDA cleared (skin tones I to V)
  • CE mark (conforms EU safety requirements)
  • 2-year European warranty
  • US 60-day money back guarantee from


  • Not FDA-cleared for use on Fitzpatrick type VI skin
  • Unclear if the Infinity is clinically proven effective on fair hair
  • Takes a bit of practise on upper lip and uneven areas
  • No money back guarantee in the UK & Europe

The Silk’n Infinity is an affordable choice for full body treatments, large areas and small areas. It’s well-made, compact, comfortable to hold, and easy to manoeuvre. And whilst not the easiest to flash on more awkward areas, it just takes a bit of practise to get right. It’s unbeaten value.

You can check prices or buy the Silk’n Infinity using the links below.

View Silk’n Infinity deals

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