Crystal Retinal
Crystal Retinal
Crystal Retinal
Crystal Retinal
Crystal Retinal
Crystal Retinal
Crystal Retinal
Crystal Retinal
Crystal Retinal

Crystal Retinal

Multi-Clinical Strength Retinal Night Serum

1.0 FL. OZ. (30mL)
Crystal Retinal

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

Discover youthful skin with Medik8 Crystal Retinal, the one-of-a-kind, ground-breaking serum that reinvented vitamin A skincare. Available in a series of progressive strengths to accompany you on your journey to Beautiful Skin For Life.

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%).

Retinaldehyde is the star of Crystal Retinal; a next-generation form of vitamin A that is proven to deliver results up to 11x faster than retinol[1]. Yes, this is retinAL, faster-acting than retinOL, the classic form of vitamin A.
Uniquely stabilized for optimum potency, Crystal Retinal is clinically proven to provide incredible results in just one tube: think visibly brighter, firmer and smoother-looking skin.
Encapsulated Retinaldehyde, Patent-Pending Stabilisation System, Hyaluronic Acid, ​Vitamin E & Glycerin
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 patent-pending 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 choice for those wanting to decongest and clarify the appearance of skin.

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. Top tip! Crystal Retinal is also the perfect vitamin A choice for those wanting to decongest and clarify the appearance of skin.

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 moisturizer. We recommend Advanced Night Ceramide, designed to be used after vitamin A.

  • 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.

  • 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 Time Rewind 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 and uneven skin texture.
    [1] G. Siegenthaler et al., Retinol and retinal metabolism, Biochemical Journal, 1990, 268, pp 371-378

  • ​​​ ​​Hyaluronic Acid

    With a unique ability to attract and retain more than 1,000 times its own weight in water, hyaluronic acid draws moisture from the surrounding atmosphere into the skin, leaving the complexion feeling both hydrated and supple.

  • ​​​ ​​Glycerin

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

  • ​​​ ​​Vitamin E

    An oil-soluble antioxidant, vitamin E works to nourish 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 stabilization 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 gently throughout the night. We then fortified this with a patent-pending stabilization formula complex, which is unique to Medik8, to ensure the retinal is stabilized 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