Chemist @labmuffinbeautysciencebreaks down the science behind the formula of Crystal Retinal, showcasing why it has gained the spot as the No.1 Retinal Serum Worldwide* Let us know in the comments if you have tried it, and what strength you are on! *visit: medik8.com/claims #Medik8 #CrystalRetinal #Retinal #SkinTok #fyp