The best Medik8 products for all skin types, according to experts

Vitamin A is a complex ingredient. A formula that is too strong can cause damage to skin unprepared for the formula, and a percentage that is too low results in slow, barely noticeable results. Crystal Retinal masterfully demonstrates the difference between retinal and retinol.—the former is a more powerful, faster-acting version of vitamin A, while the latter is slower-acting and better tolerated by most skin types. For this reason, Medik8’s Crystal Retinal line contains a powerful ingredient in varying strengths depending on skill level: 1, 3, 6, 10, 20, 24. No matter which one you choose, the formula is designed to reduce the appearance of fine lines. and wrinkles, and elasticity, and skin brightening. Of course, a retina-heavy routine needs some softening, so this formula contains hyaluronic acid, glycerin and vitamin E to soothe skin.

Best for: All skin types.

Key Ingredients: Retinaldehyde

Size: 1 fl oz

Medic8 rating: 4.8/5 stars

ELLE editor says: “My introduction to Medik8 was through the Crystal Retinal line. Confident in my already retinol-treated skin, I started using CR6 several times a week and noticed a peeling effect almost immediately. So I reduced the intensity to CR3 and found that this was my sweet spot. I can still see my renewed skin peeking through the scales and my face looks more radiant and smooth.”— Nerisha Penrose, ELLE.com Beauty Editor