Medik8's numbering system (1 through 10) indicates retinal concentration — 6 sits in the intermediate range for users who've already built tolerance at lower numbers.
Best for those with established retinal or retinol tolerance wanting to progress to a stronger formulation within a structured, incremental system.
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Medik8 Crystal Retinal 6 from Medik8 is a well-rounded option for those seeking those with established retinal or retinol tolerance wanting to progress to a stronger formulation within a structured, incremental system. The inclusion of Retinal (Retinaldehyde) provides faster-converting, more potent vitamin a derivative. Best suited for those with established retinal or retinol tolerance wanting to progress to a stronger formulation within a structured, incremental system.
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