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.

It works

5 stars out of a maximum of 5

This was recommended by a youtuber who swears by it. I bought it and yes, it is the most effective Retinal product I've tried. Lucky I don't have sensitive skin, as I went straight in with the 6. I cycle this on/off throughout the week because if used too consistently you WILL see flaky skin. But that's what I love about it because I know its working. I feel a slight tingle when applying, but never burns. And it gets to working FAST. This is one of the only products that if used regularly actually shrinks my pores. Magical at improving skin texture. But you do need to get into a rhythm, where you moisturise your skin to death the next night to keep the dryness at bay. Love this. Wonder product. Have repurchased a few times now. Ridiculously expensive for the amount, but since I don't use it every single night one tube has lasted me months = WORTH EVERY PENNY. 5 stars.

by Suki Verified Purchase

Was this helpful?

Great serum

5 stars out of a maximum of 5

Love this serum doesn’t irritate my skin and smooths everything out.

by kat_ldns Verified Purchase

Was this helpful?

love love love

5 stars out of a maximum of 5

i love this product! works really well and not too harsh on the skin!! 

by Jay Verified Purchase

Was this helpful?

2nd purchase of this product

5 stars out of a maximum of 5

This is my second purchase of this product . I love this retinol and my skin does not react to it 

by Deborah Verified Purchase

Was this helpful?

Perfection

5 stars out of a maximum of 5

I've always found retinoids trigger my eczema and generally wrecked my skin barrier. I never have a problem with this. I use it 6 days per week and my skin is clear, healthy and glowing. I'll never be without my cr6

by Helen Verified Purchase

Was this helpful?

Love!

5 stars out of a maximum of 5

Love this product.  Like most people I started on number 3 and then moved up to 6.  My skin looks so much more clearer and feels smoother since using this.  

by Sarah Verified Purchase

Was this helpful?

I love this brand!!

5 stars out of a maximum of 5

My absolute favourite skin care brand. It isn’t cheap but I genuinely feel that using this product has made a difference to the texture of my skin. I use this with their liquid peptides and have been for sometime and can honestly say my skin looks smoother

by Sarah Verified Purchase

Was this helpful?

Love this

5 stars out of a maximum of 5

I've moved up from strength 3 after finishing my last bottle. I've barely had any irritation and my skin is glowing.

by Kirsty Verified Purchase

Was this helpful?

Fantastic retinal product!

5 stars out of a maximum of 5

I’ve been working my way up the Medik8 CR products, starting on CR 3, and have now moved on to CR 6 - fantastic product. It soaks in well and leaves me looking refreshed on the morning. Personally I’ve not experienced any sensitivity or irritation with the CR products, and have loved them so far.

by Emma Verified Purchase

Was this helpful?

It works

5 stars out of a maximum of 5

I have seen a real improvement in my skin since using this, it is gentle compared to other retinols I have tried too 

by Lucy Verified Purchase

Was this helpful?