Apply to clean skin in a buffering motion and leave on for 3 minutes and rinse with water. Follow with serum/moisturizer of your choice.
Deionized Water, Glycolic Acid, Lactic Acid, Vitamin C (Ascorbic Acid), Vitamin C (Ascorbyl) Glucoside, Sodium Hydroxide, Xanthan Gum, Phenoxyethanol, Caprylyl Glycol, Potassium Sorbate, Hexylene Glycol
"There are no U.S. laws or regulations that require cosmetics to have specific shelf lives or have expiration dates on their labels, but there is a time frame for when they should be used after opening. We recommend using the product 90 days after opening maximum. Unopened and kept in a cool, dry environment away from direct sunlight, some products can last up to 2 years. While using older products may not be relatively harmful, the product may have lost some potency and may not be as effective as a newer, fresher product."