What It Is: An antioxidant facial treatment fortified with Ferulic and Lactic Acids (AHA) to visibly boost glow, smooth skin's texture, & reduce fine lines in just seven days.* What It Does: With ingredients brewed for 120 hours, this 99%** natural formula with Ferulic Acid, Lactic Acid (AHA) and Squalane provides powerful antioxidant protection to visibly smooth and even skin's texture and tone, reduce fine lines and leave skin with a healthy-looking glow.* What It's Good For: Absorbs quickly to gently remove dull surface skin for a visibly smoother, even, and glowing complexion Provides efficacious antioxidants for skin to help support skin's natural recovery process and defend against skin-aging free radicals Visibly reduces fine lines and helps to prevent early signs of aging Primes skin to help better receive serums and/or moisturizers that follow in a skincare routine, making it an essential first treatment step For all skin types Free of parabens, phthalates, sulfates, mineral oil, synthetic fragrances Key Ingredients: Ferulic Acid: Ferulic Acid is a plant-derived antioxidant naturally found in the cell wall of plants including bran and certain fruit seeds. The Ferulic Acid in Kiehl's formula is naturally-derived and helps skin's natural recovery process to target visible damage. Lactic Acid: Naturally found in dairy products, Lactic Acid is an alpha hydroxy acid known for its exfoliation properties. Within Kiehl's formulas, Lactic Acid helps gently exfoliate skin while improving moisture and diminishing the look of fine lines and uneven skin texture. Squalane: A signature Kiehl's ingredient, Squalane is a highly-refined botanical lipid derived from olives. With an exceptional affinity to skin, Squalane absorbs easily and is known to help replenish skin's barrier keeping it soft, supple and moisturized. How to Use: After cleansing, shake the bottle five times to mix the Ferulic Brew within the bottle Pour five generous drops of Kiehl's antioxidant facial treatment into the palm of your hand Gently press onto skin five times, focusing on the cheeks, forehead and chin areas Follow with serum and/or moisturizer Can be used morning and night Ingredients: Aqua/Water , Arginine , Saccharomyces/Rice Ferment Filtrate , Dicaprylyl Ether , Glycerin , Pentylene Glycol , Lactic Acid , Propanediol , Squalane , Butylene Glycol , Sodium Chloride , Tocopherol , Ascorbyl Glucoside , Salicylic Acid , Ferulic Acid , Caramel , Adenosine , Lavandula Hybrida Oil , Helianthus Annuus Seed Oil/Sunflower Seed Oil , Cupressus Sempervirens Leaf/Nut/Stem Oil , Anthemis Nobilis Flower Oil , Linalool , Pelargonium Graveolens Flower Oil , Brassica Campestris Extract/Rapeseed Extract , Brassica Campestris Sprout Extract/Rapeseed Sprout Extract , Mentha Piperita Oil/Peppermint Oil , Sodium Hyaluronate , Citronellol , Geraniol , Limonene , Origanum Majorana Leaf Oil *Results based on expert grading in a 4-week consumer test on 60 subjects. **Kiehl's considers ingredients to be naturally derived if they retain more than 50% of their molecular structure after being processed from a natural source.