The PAULA'S CHOICE C15 Super Booster is a 15% Vitamin C serum designed to brighten skin for all skin types. With a regular size of 20ml, this day and night treatment is unisex and made in the United States. The active ingredients, Vitamin C and Ferulic Acid, work together to help improve skin texture and reduce the appearance of dark spots and hyperpigmentation. Ideal for daily use, this formulation is formulated to provide a potent boost of antioxidants to the skin. Brand new never opened- received in beauty calendar but will not use