Free UK shipping over £25 15% off your app order Sign up for email exclusives Earn Cult Status Points
Get up to 15% OFF your first haul with code FIRST15
Medik8

Medik8 Crystal Retinal 6

You'll earn 55 Status Points with this product

Discover Cult Status

RRP: £69.00 Current price: £55.20

Save £13.80 ( 20% Off )

Or 4 interest free payments of £13.80 with clearpay


In stock | Usually dispatched within 24 hours

Image 1, Clinically proven wrinkle reduction in 7 daysClinically proven tovisibly firm, smooth,brighten & lift skinin 1 tubeClinically proven toreduce visible dark spots by 20%*94% agreed Crystal Retinal promoted visibly clearer skin100% agreed Crystal Retinal was gentle on their skinMedik8CRYSTAL*Proven via multiple independent clinical & consumer studies,including testing on sensitive skins. Image 2, BEFORE97%AFTER 1 TUBEof people felt their skin had a more youthful appearanceMediks Image 3, THE4PPsUNRIVALLED POTENCYThe closest thing to prescription-strength retinoic acid, without a prescriptionPATENTED STABILITY Market-leading stabilitytechnology for maximum retinal effectiveness until the last dropPROFESSIONALGRADE RESULTS Clinically proven wrinkle reduction in 7 daysPROGRESSIVE STRENGTHSUnique ladder of strengths delivers progressive age-defying results as your skin builds up toleranceMedik8CRYSTAL RETINAL &-Seth VProven vio independent HPLC stability testing in accelerated conditions.Proven via independent clinical studyon the Crystal Retinal ladder tested on 33 participants over 18 weeks. Image 4, BEFOREAFTER 1 TUBE9/10agree this is the best anti-ageing serum they have ever usedMediks Image 5, 5STRENGTH 20(O.20% RETINALDEHYDE)STRENGTH 10 (O.10% RETINALDEHYDE)PROGRESSIVE STRENGTHSFor experienced vitamin A usersFor advanced vitamin A usersSTRENGTH 6 (O.O6% RETINALDEHYDE)For regularvitamin A usersSTRENGTH 3 (0.03% RETINALDEHYDE)STRENGTH 1 (0.01% RETINALDEHYDE)For new vitamin A usersFor sensitive skin Image 6, PMHOW TO LAYER ADVICE:Always include a sunscreen in your morning routine the following day Image 7, THE CSA PHILOSOPHYRMedik8s clinically proven skincare approach that addresses 90% of anti-ageing skincare needs in just 3 simple steps.BRIGHTENS for glowing skinPROTECTSRENEWSfor youthful skinfor perfected skinMedik8+Medik8+MediksVITAMIN C ✡AMSUNSCREENVITAMIN A✡AMPM

Frequently Bought Together

Medik8 Crystal Retinal 6

This item

Medik8 Crystal Retinal 6

RRP: £69.00 Current price: £55.20

Save £13.80 ( 20% Off )

Total Price:

£102.40

Other Customers Bought

Customer Reviews

4.82 stars out of a maximum of 5

5 stars rating 320 reviews

4 stars rating 47 reviews

3 stars rating 4 reviews

2 stars rating 2 reviews

1 stars rating 2 reviews

Top Customer Reviews

Thanks for sharing your thoughts! Please remember that results will vary from person to person. We're proud to say that all customer reviews are independent, authentic and do not represent the views of Cult Beauty or The Hut Group.

Big fan

5 stars out of a maximum of 5

Love Medik8 products especially the retinol serum, I finished my 3 and going to try 6. It is a gentle progress and I do see the amazing result!

by Vivien Verified Purchase

Was this helpful?

Retinal

5 stars out of a maximum of 5

Moving from no3 to this no6. Had no issues with no3 so thought I’d progress. Skin is looking smoother and glowier for sure 🤩

by Vanessa Verified Purchase

Was this helpful?

No irritation

4 stars out of a maximum of 5

Only recently gone up to this level. Main thing I have noticed is that I have not suffered with any irritation. In terms of difference to my skin appearance, can’t see anything yet 

by Julia Verified Purchase

Was this helpful?

Works!

5 stars out of a maximum of 5

Upgraded tk this from the 3, this is my second tube. I really like it, it’s comfortable and moisturising and I do think it makes a difference 

by Vicki Verified Purchase

Was this helpful?

It works

5 stars out of a maximum of 5

I’m 31 so using retinol multiple times a week now, this really makes a difference. I notice less lines and pigmentation. Make sure you use a lot of spf alongside it 

by Lucy Verified Purchase

Was this helpful?

effective

5 stars out of a maximum of 5

medik8 products are so reliable and this serum doesn't disappoint; my skin is brighter, smoother & firmer and hasn't irritated my sometimes sensitive skin.

by Alison Verified Purchase

Was this helpful?

Wow!

5 stars out of a maximum of 5

Love this product. Been using it for a few weeks now and I’ve seen a massive difference in my skin. Less outbreaks and skin looks so nice and soft. I’m still working on it fading my age spots I have on my face, I know it will take time though. So far so good though. 

by Gemma Verified Purchase

Was this helpful?

Medik8 retinal

4 stars out of a maximum of 5

Started using this a couple of weeks and have had no issues with it irritating my skin. Easy to apply and absorbs well.

by Paula Verified Purchase

Was this helpful?

Miracles Do Happen

5 stars out of a maximum of 5

After using Crystal Retinal 3 (which I also highly rate) I decided to move up to strength 6. It is still gentle enough for my sensitive skin and I’m seeing the results. I now use Medik8 for my whole regime! 

by Rachielou Verified Purchase

Was this helpful?

The best

5 stars out of a maximum of 5

I adore this retinal, I have forgotten how many time I have repurchased this so amazing 

by M Verified Purchase

Was this helpful?