Crystal Retinol 20

Crystal Retinal 20 contains a very high strength of retinaldehyde (0.2%) and should only be used if you have comfortably finished at least two tubes of Crystal Retinal 10. Formulated with Medik8's highest ever strength of 0.2% encapsulated retinaldehyde - a powerful derivative of Vitamin A - Medik8 Crystal Retinal 20 is the ideal solution for those with skin suited to stronger Vitamin A formulations. Medik8 Crystal Retinal 20 is a high-performance night serum for those looking to boost the resul.