Reveal younger-looking skin with this vitamin A night serum, it is clinically proven to visibly smooth stubborn wrinkles, brighten dark spots, decongest and firm your skin - without irritation. Crystal Retinal contains retinal which acts 11x faster than standard retinol. The patented retinal stability system ensures unmatched retinal potency and effectiveness until the very last drop. HOW TO USE: For new users of Crystal Retinal, add in gradually. Use twice a week for the first 2 weeks, every other night for the next 2 weeks, then every night. You should always use a sunscreen the next morning after using vitamin A After cleansing and toning in the evening, apply 2 pumps of Crystal Retinal to the face and neck. Allow to absorb then follow with a moisturiser. I recommend Advanced Night Restore which is designed to be used after vitamin A.