Are You Ready To
Move Up The Crystal Retinal Ladder?

You should be comfortably using Crystal Retinal 10 every night for 3 months or completed 2 full tubes (whichever comes sooner) before you consider moving up, so your skin can build up an advanced tolerance to high concentrations of retinal.

As a general rule, there is no need to phase in use again as your skin is used to this molecule. 

However, we advise to closely monitor your skin during the first 2 weeks of using Crystal Retinal 20. Slight tingling is normal with this powerful formula, however if you feel any sensitivity as you move up, please reduce how much product you apply nightly or apply every other night to begin with. Low and slow is our advice.

As a professional-led skincare brand, we have a global team of in person Medik8 skin professionals who are ready and waiting to analyse and support your skin. See our salon finder here to find your perfect match.