Neostrata 15% Vitamin C + PHA Serum is a unique powerhouse face serum that has been expertly formulated with a blend of clinically proven antioxidants and exfoliating Polyhydroxy Acid (PHA) to reveal brighter, more radiant skin in just one week. Lightweight and easily absorbed, the formula glides on smoothly and gives the skin an instant boost of radiance with Vitamin C, Feverfew Extract, Green Tea, and Gluconolactone (PHA) to provide the skin with antioxidant protection against external aggressors and oxidative stress, working to reduce the appearance of skin discolouration for a more even skin tone. The reason the formula contains Polyhydroxy Acid is because it helps to gently exfoliate the skin’s surface, allowing the Pure Vitamin C to absorb into fresh, renewed surface skin layers. Benefits of Neostrata 15% Vitamin C + PHA Serum: Clinically proven to visibly target dark spots, uneven skin tone, and texture Reveals brighter skin in just one week Protects against external aggressors