Retinaldehyde (Retinal)

Retinal is Medik8’s revolutionary form of vitamin A, found in our cult-favourite Crystal Retinal serum. It is one conversion step closer than retinol to the active form of vitamin A (retinoic acid), that all forms of vitamin A must convert to before becoming effective on the skin. As a result, retinal is 11x faster acting on the skin than retinol[1], without any added irritation potential.


[1] G. Siegenthaler et al., Retinol and retinal metabolism, Biochemical Journal, 1990, 268, pp 371-378

4 Products
Crystal Retinal 1
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Crystal Retinal 1

0.01% Retinal serum for very sensitive skins - 11x faster than retinol

30ml / $53
Crystal Retinal 3
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Crystal Retinal 3

0.03% Retinal serum for vitamin A beginners - 11x faster than retinol

30ml / $62
Crystal Retinal 6
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Crystal Retinal 6

0.06% Retinal serum for regular vitamin A users - 11x faster than retinol

30ml / $81
Crystal Retinal 10
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Crystal Retinal 10

0.1% Retinal serum for advanced vitamin A users - 11x faster than retinol

30ml / $106
Crystal Retinal 20
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Crystal Retinal 20

0.2% Retinal serum for highly experienced vitamin A users - 11x faster than retinol

30ml / $120
Crystal Retinal Ceramide Eye 3
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Crystal Retinal Ceramide Eye 3

0.03% Retinal all-in-one ceramide night cream for vitamin A beginners - 11x faster than retinol

15ml / $53
Crystal Retinal Ceramide Eye 6
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Crystal Retinal Ceramide Eye 6

0.06% Retinal all-in-one ceramide night cream for vitamin A beginners - 11x faster than retinol

15ml / $66
Crystal Retinal Ceramide Eye 10
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Crystal Retinal Ceramide Eye 10

0.1% Retinal all-in-one ceramide night cream for vitamin A beginners - 11x faster than retinol

15ml / $84
The CSA Kit Retinal Edition-3
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The CSA Kit Retinal Edition

Upgrade your anti-ageing results with next-generation vitamin A.

Contains 4 products / $157
The CSA Kit Retinal Edition for Men-4
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The CSA Kit Retinal Edition for Men

Upgrade your anti-ageing results with next-generation vitamin A.

Contains 4 products / $157