Medik8 Crystal Retinal: retinaldehyde night serums in numbered strengths, so you can start gently and build up as your skin adjusts.
Crystal Retinal is Medik8's range of vitamin A night serums using retinaldehyde. The numbers on each bottle show the strength, so most people start at a lower level and move up as their skin gets used to vitamin A.
The range also includes Crystal Retinal Ceramide Eye for the delicate eye area. Use in the evening, introduce it a few nights a week at first, and wear SPF every day.
Some strengths have limited stock. If yours is unavailable, our team can suggest a suitable alternative.
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