Tarte's Knockout 10% Acid Complex Serum is a 5-in-1 AHA serum with 10% glycolic & lactic acid blend for more youthful-looking skin Benefits Retexturizes, brightens, hydrates, helps improve appearance of firmness & minimizes the look of poresFormulated at the ideal acid pH level of 3.7, so it's gentle on all skin typesNo synthetic fragrances & dermatologist testedIN A CONSUMER PANEL STUDY (of 32 Subjects After 2 Weeks of Use):100% said their skin looks more radiant96% said:Pores appear noticeably smallerTheir skin looks more youthfulTheir skin's tone & texture look improvedTheir skin looks hydratedIt doesn't strip skin of moisture Key Ingredients Glycolic acid: deeply exfoliates & repairs look of dull, congested skin for a visibly radiant, healthier-looking complexionLactic acid: hydrates & gently exfoliates, promoting cellular renewal for younger, plumper-looking skinVegan squalane: known for hydrating, retaining moisture & enhancing elasticityCoenzyme 10: helps promote collagen production & skin firmness while hydrating & soothingAloe: antioxidant & vitamin-rich to help soothe Clinical Results VeganDermatologist tested Inactive Ingredients: Water/Aqua/Eau, Glycolic Acid, Lactic Acid, Aloe Barbadensis Leaf Juice, Sodium Hydroxide, Propanediol, 1,2-Hexanediol, Hydroxyacetophenone, Polysorbate 20, Hydroxyethylcellulose, Caprylhydroxamic Acid, Sclerotium Gum, Squalane, Limonene, Sodium Carbonate, Citrus Grandis (Grapefruit) Peel Oil, Citric Acid, Potassium Sorbate, Sodium Benzoate, Ubiquinone, Disodium Phosphate, Polysorbate 60, Sodium Phosphate. Suggested Use: * Use once daily, day or night after cleansing.* Apply 2-4 drops on dry face, neck & chest.* Follow with your favorite moisturizer.Warning: Keep out of reach of children. For external use only. Use only as directed. Avoid contact with eyes. If contact occurs, rinse well with water. If irritation develops, discontinue use and consult a physician. Sunburn Alert: This product contains an alpha hydroxy acid (AHA) that may increase your skin's sensitivity to the sun and particularly the possibility of sunburn. Use a sunscreen, wear protective clothing, and limit sun exposure while using this product and for a week afterwards. UPC: 000002578622 Weight: 0.57 lbs RKU: ULT2578622