There's a reason Crystal Retinal is the No.1 Retinal Serum Worldwide*. @silverliberation shares why this is her go to product for her best skin yet. With 6 progressive strengths, you can work your way up our ladder system for transformative results while still being gentle on your skin barrier. Find your strength using our Crystal Match quiz through the link in our bio. *visit: medik8.com/claims #Medik8 #CrystalRetinal #Retinal #SkinTok #fyp