What it is: A Vitamin C Serum featuring THD and ascorbic acid to visibly brighten skin, reduce the appearance of dark spots and neutralize free radicals.What it does: This powerful serum visibly brightens skin, neutralizes free radicals and reduces the appearance of hyperpigmentation, inflammation and wrinkles to protect skin.Key ingredients:- THD: an ultra-stable form of oil-soluble Vitamin C that neutralizes free radicals to reduce the appearance of hyperpigmentation, wrinkles and inflammation- Hibiscus Flower Acid: improves brightness and hydrates- Vegan Squalane derived from olives: reduces the appearance of irritation and inflammation- Vitamin E sourced from sunflowers: a natural antioxidant that aids in skin conditioningHow to use: Use daily as part of your morning and evening routines. After cleansing, dispense a pea-sized amount to the back of your PMD Clean or your fingertips. Apply an even layer over your face and d?olletage. Follow with moisturizer. 1 oz. Paraben-free; phthalate-free; silicone-free Made in the USA