what is it
Reveal younger-looking skin with just 1 tube of Crystal Retinal. Our iconic vitamin A night serum is clinically proven to visibly smooth stubborn wrinkles, brighten dark spots, decongest and firm your skin - without irritation.[1]
Crystal Retinal contains retinAL; a next-generation vitamin A which acts 11x faster than standard retinOL.[2] And, unlike others, our patented retinal stability system ensures unmatched retinal potency and effectiveness until the very last drop.
It’s no wonder Crystal Retinal is the UK’s No.1 dermatological face serum.[3]
[1] Proven via independent clinical study on Crystal Retinal 6. Tested on 33 participants over 12 weeks.
[2] G. Siegenthaler et al., Retinol and retinal metabolism, Biochemical Journal, 1990, 268, pp 371-378
[3] Source: Circana (UK) Ltd, Retail Tracking Service, Prestige Skincare Face Serum by Franchise Line, Derm Brand Attribute, Value & Unit Sales, 12 ME June 2025. †Dermatologist Brand is defined as a brand that has identified itself as (i) founded or developed by a dermatologist and/or (ii) is dermatologist recommended. To verify visit: https://www.medik8.com/pages/circana-group-claim-letters-crystal-retinal
THE SCIENCE BEHIND THE FORMULA
Daniel Isaacs
Chief Product Officer
When it comes to vitamin A; the more stable the molecule, the more effective it can be on the skin. Crystal Retinal offers a level of retinal stability that can only be found at Medik8.
Our innovative stability system features our renowned crystal encapsulation technology, a patented carrot seed oil complex, and airless packaging. All this comes together to protect the retinal molecule for unmatched potency, long-lasting effectiveness and proven skin comfort.
Unlike many retinals, which can cause flaking and irritation, Crystal Retinal has been expertly formulated in our in-house laboratory with a unique combination of the highest quality ingredients and patented technologies so it's gentle yet very powerful.
FAQS
When, and how, should l apply Crystal Retinal - do l need to phase it into my routine?
When, and how, should l apply Crystal Retinal - do l need to phase it into my routine?
Yes. You should apply Crystal Retinal as part of your evening skincare routine - after cleanser,toner and serums, but before your moisturiser. We always recommend phasing Crystal Retinal into your existing skincare regimen;, using it twice a week for two weeks, then every other night for two weeks, then every night after that. You do not have to phase in when moving up a strength within the Crystal Retinal ladder (e.g. when moving from Crystal Retinal 3 to Crystal Retinal 6)
Can l use Crystal Retinal every night?
Can l use Crystal Retinal every night?
As long as you build your use up gradually and start with the appropriate strength to begin with，you can use Crystal Retinal every night. For new users of Crystal Retinal, we strongly recommend that you phase-in application to enable your skin to build up a tolerance while avoiding any potential iritation. Use twice a week for the first two weeks, every other night for the following two weeks, then every night.
Can l use Crystal Retinal while pregnant or breastfeeding?
Can l use Crystal Retinal while pregnant or breastfeeding?
As a cosmetics company, we are unable to provide product advice in relation to medical conditions such as pregnancy or breastfeeding. We strongly recommend discussing the ingredients with your GP or midwife before use. We do, however, generally recommend avoiding vitamin A use while pregnant or breastfeeding, which is why we offer a plant-based vitamin A alternative-BakuchiolPeptides
Do l need to follow Crystal Retinal with a moisturiser?
Do l need to follow Crystal Retinal with a moisturiser?
We do recommend applying a moisturiser after vitamin A. Our bestselling night cream, Advanced Night Restore, is specifically designed to be used following vitamin A use. it helps to boost the visible age-defying benefits of vitamin A while maintaining optimal comfort.
Can l use Crystal Retinal around my eye area?
Can l use Crystal Retinal around my eye area?
We don't recommend using Crystal Retinal directly around the eye area due to its very delicate nature. However, that's exactly why we've created Crystal Retinal Ceramide Eye. lt boasts all of the renowned age-defying power of our original Crystal Retinal. but is expertly optimised for specific use on the delicate eye area.
How do l use Crystal Retinal alongside vitamin C?
How do l use Crystal Retinal alongside vitamin C?
We recommend using vitamin C alongside Crystal Retinal (vitamin A) as part of our pioneering CSA Philosophy. This simple yet clinically proven skincare approach champions vitamin C plus Sunscreen by day, vitamin A (retinoids) by night as the secret to youthful, glowing skin. After cleansing in the morning, apply your vitamin C serum (such as C-Tetra Luxe) and follow with your sunscreen (we recommend Advanced Day Ultimate Protect). After cleansing in the evening, apply Crystal Retinal.