Free UK shipping over £25 15% off your app order Sign up for email exclusives Earn Cult Status Points
Enjoy 25% OFF 20 of our bestselling brands
Medik8

Medik8 Crystal Retinal 3 Serum 30ml

You'll earn 37 Status Points with this product

Discover Cult Status

RRP: £49.00 Current price: £36.75

Save £ 12.25 ( 25% Off )

Or 4 interest free payments of £9.18 with clearpay


Image 1, clinically proven to viaibly reduce wrinkles and dark spots by 20% with just 1 tube. improves skin firmness by 11%. works 11 times faster than standard retinol. 100% agree crystal retinal is gentle even on sensitive skin. proven via independent clinical study on crystal retinol 6, tested on 33 participants over 12 weeks. biochern hournal, 1990, 268 pp 371-378. image 2, before and after 1 tube. 97% of people felt their skin had a more youthful appearance. image 3, 5 progressive strengths. strength 1 = 0.01% retinaldehye for sensitive skin. strength 3 0.03% retinaldehyde for new vitamin a users. strength 6 0.06% retinaldehyde for regular vitamin a users. strength 10 0.1% retinaldehyde for advanced vitamin a users. strength 20, 0.2% retinaldehyde for expert vitamin a users. image 4, how to layer. PM = cleanser, target, vitamin a, eyes, moisturise. expert advice = always include a sunscreen in your morning routine the following day. image 5, the CSA philosophy - Medik8's clinically proven skincare approach that addresses 90% of anti-ageing skincare needs just 3 simple steps. brightens for glowing skin vitamin c in the morning. protects for youthful skin - sunscreen in the morning. renews for perfected skin - vitamin a in the evening.

Frequently Bought Together

Medik8 Crystal Retinal 3 Serum 30ml

This item

Medik8 Crystal Retinal 3 Serum 30ml

RRP: £49.00 Current price: £36.75

Save £12.25 ( 25% Off )

Total Price:

£66.00

Other Customers Bought

Customer Reviews

4.75

309

5

4

3

2

1

250

47

9

1

2

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.

Medik8 Crystal retinal 3

Although I have been using a retinoid for some time and have been pleased with the results, I decided to try the Medik8 retinal 3 on the recommendation of my daughter. I had no need to phase it in (as an experienced user). My skin tolerates it really well, looks clear and smooth. I aim to move up to retinal 6 when I finish this product. It seems like a kind and gradual way of moving to higher strengths and hopefully improved results. 

by Vicky Verified Purchase

Was this helpful?

Absorbs quickly

I want to love this and it has all the makings of a great product but I just can’t seem to get past the Retinol nasties! The product itself seamlessly absorbs into the skin, I wake up with the softest skin but I think it’s just too high a % for me. Im going to drop down a % again to see if I get a better result. 

by Cassie Verified Purchase

Was this helpful?

Amazing serum

As a first-time user of retinol, I wasn't sure whether to go straight in for the Medik8 6 or the Medik8 3 serum, as I've used acids for a good few years now so was tempted to go straight in as my skin is used to harsher products and doesn't tend to react. I chose to go for this one to 'dip my toes in' after reading the reviews, and I'm so glad I did. I'm currently using it every other day at the moment (it does say I can go to every day in a couple of weeks) but the difference in my skin is already noticeable. It's much clearer - it hasn't done too much for the wrinkles yet, but my skin is definitely plumper and my skin barrier much better. I wouldn't hesitate to recommend this product to first time retinol users - amazing.

by Lauren Verified Purchase

Was this helpful?

Great starter retinol.

Low enough strength that any negative effects have been minimal to non-existent, but notable improvement in skin pigmentation and fine lines after a month of use - will be moving up to the next strength after this one is done, and would massively recommend as a beginner retinol. 

by Tamsin Verified Purchase

Was this helpful?

Fabulous

Love this product so much  Perfect starter on my sensitive skin and phase in gradually to night routine All of Medik8 products are wonderful and also a big fan of press and glow 

by Lollipop7777 Verified Purchase

Was this helpful?

Mum likes it so far

Bought as a gift for mum and she likes it so far. Thinking of getting one for myself too hoping it would calm my acne down. 

by A Verified Purchase

Was this helpful?

Swear by this retinol!

The best retinol product I’ve used, I use it nightly 

by Ellie Verified Purchase

Was this helpful?

Best in every aspect

I always wanted to actually stick with using retinoids, however, I am very critical of textures and user experience, and simply no product did it for me - I couldn't bear to use them long enough to actually see improvements, until I finally gave in to the rave this product has and bought it. Bestest decision ever, truly. Texture is divine, non-greasy, effective. Already repurchased!

by Alexandra Verified Purchase

Was this helpful?

Gentle on the skin

I love this medik8 product. I use liquid peptides in the morning and this product for the night. I used it exactly how it was recommended and my skin in the morning looks fresh and plumped. Definitely recommend! 

by Samanta Verified Purchase

Was this helpful?

Visible effect

First product from the brand - there was a visible difference on the first use in the morning. Didn’t cause any irritation, and absorbs well as the first layer. As an added bonus, the packaging is quite effective and hygienic. I look forward to trying other products from the brand.

by jabberer

Was this helpful?