Obagi Professional-C 15% Serum 30mlA powerful antioxidant face serum with 15% Vitamin C that minimises the appearance of fine lines and wrinkles, defends against environmental stressors, and leaves skin glowing. 1 x Size 30ml. Best for: hyperpigmentation and uneven tone, anti ageing. Suitable for all skin types. Obagi Professional C Serum 15% will lighten skin discoloration, even complexion, firm skin, protect against sun damage, and minimize the appearance of fine lines and wrinkles.*