Crystal Retinal®
Crystal Retinal®
Crystal Retinal®
Crystal Retinal®
Crystal Retinal®
Crystal Retinal®
Crystal Retinal®
Crystal Retinal®
Crystal Retinal®
Crystal Retinal®
Crystal Retinal®

Crystal Retinal®

Award-winning Age-Defying Vitamin A Night Serum

Crystal Retinal®

If you're unsure which strength is right for you, take our handy Strength-finder

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Discover youthful skin with Medik8 Crystal Retinal, the ground-breaking serum that reinvented vitamin A skincare. Featuring retinaldehyde, the next-generation retinoid that is 11x faster acting than retinol[1], now available in a series of 5 progressive strengths to accompany you on your journey to Beautiful Skin For Life.

Crystal Retinal is our ‘everyone’ vitamin A. It is renowned for its universal hydrating texture and low-irritation potential, while delivering profound, proven age-defying results.

Extremely sensitive skins should start low on Crystal Retinal 1 (0.01% retinal), with Crystal Retinal 3 (0.03%) best for sensitive skins or for those nervous about using retinal. Most people can start on Crystal Retinal 6 (0.06%) and gradually move up to Crystal Retinal 10 (0.1%) & 20 (0.2%) for clinical-strength results.
Retinol is two conversion steps away from active retinoid ‘retinoic acid’, whereas retinal is just one step away. So you get faster, elevated results.

Retinal improves all of the visible signs of ageing 11 times faster than retinol[1].

Unlike other forms of vitamin A, our Crystal Retinal formula is suitable for even the most sensitive skins.

Retinal is the only form of vitamin A with antibacterial properties, making it perfect for oily or blemish-prone complexions.
Crystal Retinal is a one-of-a-kind innovation within the retinoid category. Not only featuring a patented stability system to offer unparalleled sustained levels of retinal power, Medik8 have taken it one step further and developed a progressive 5-strength ladder from 0.01% to 0.2% retinal. Harness the power of this molecule in a skin-friendly solution to build visible results comfortably over time.
Crystal Retinal®

Go from before to after 11x faster. The Medik8 retinal revelation that leaves ordinary vitamin A behind.

Crystal Retinal®

Patented Stability Matters

The more stable the molecule, the more effective it can be on the skin. Crystal Retinal offers a level of retinal stability that is only found at Medik8: our innovative stability system features our renowned crystal encapsulation and a patented formula complex. The dual-layered stability system comes together to protect the retinal molecule for unmatched potency and long-lasting effectiveness.

Ladder Up

Always peak, never plateau. Ladder up your results with 5 available strengths: 1, 3, 6, 10 and 20. Most customers start on Crystal Retinal 3 (for skincare beginners) or 6 (for experienced skincare users), then over time move up to 10. Find out which level of Crystal Retinal is right for you here.

Top tip! Crystal Retinal is also the perfect vitamin A for those wanting to target the appearance of blemishes and congestion due to retinal’s unique antibacterial action on the skin.

Crystal Retinal®
Crystal Retinal®
Crystal Retinal®
Crystal Retinal®

Retinal Results

The leader of retinal vitamin A skincare innovation, the powers of Crystal Retinal are loved by customers and skin professionals alike. The ground-breaking formula works fast to deliver the clinically proven benefits that sets Crystal Retinal above the rest.

How to use it

  • How to Apply

    Use in the evening. First cleanse, then apply 2 pumps of Crystal Retinal over face and neck. Allow to absorb then follow with a moisturiser. We recommend Advanced Night Restore, designed to be used after vitamin A.

    Up to 3 months supply from 1 tube when used daily (after phasing in).

  • Phase-In

    For new users of Crystal Retinal, phase application in gradually. Use twice a week for the first 2 weeks, every other night for the next 2 weeks, then every night. You should always use a sunscreen in the morning while using vitamin A.

    Crystal Retinal 20 should only be used by those who have comfortably finished at least 2 tubes of Crystal Retinal 10, due to it containing a very high strength of retinaldehyde (0.2%).

  • Patch Testing

    Patch testing prior to use is advised. Refer to for an in-depth guide to patch testing.

  • Routines & Layering

    Crystal Retinal features in many of our carefully curated regime guides, including our Wrinkle Repair regime. Click the link for additional product recommendations and easy-to-follow layering advice.

Key Ingredients

  • ​​​​​ Retinaldehyde

    Proven to work up to 11 times faster than retinol[1], retinaldehyde is a revolutionary new form of vitamin A that targets the appearance of fine lines and wrinkles, hyperpigmentation and uneven skin texture.
    [1]/* G. Siegenthaler et al., Retinol and retinal metabolism, Biochemical Journal, 1990, 268, pp 371-378

  • ​​​ ​​Hyaluronic Acid

    With the ability to attract and retain more than 1,000 times its own weight in water, hyaluronic acid draws moisture into the upper layers of the skin, leaving the complexion feeling hydrated.

  • ​​​ ​​Glycerin

    As a natural humectant, glycerin traps water within the skin to leave it hydrated and comfortable.

  • ​​​ ​​Vitamin E

    An oil-soluble antioxidant, vitamin E can quench free radicals on the skin while stabilising retinaldehyde for optimal power.

What we choose not to include

Full Ingredients

Hear from the experts

“After years of research and experimentation, we cracked the retinal code in 2018 with a unique stabilisation discovery. Our reinforced stability system involves two formulation techniques. First, we protected the powerful yet fragile molecule with a crystal encapsulation that works to both blanket the retinal and time-release it onto our skin gradually throughout the night to minimise any potential for irritation. We then fortified this with a patented stabilisation formula complex, which is unique to Medik8, to ensure the retinal is stabilised throughout its whole life cycle - from raw material, all the way onto our skin. This means that your Crystal Retinal remains powerful from the first application, to the very last".

Daniel Isaacs
Director of Research