HIGH POTENCY CLASSICS FACE FIRMING SERUM 2fl oz Brand New In Box. High Potency Classics Face Firming Serum, previously available only through dermatologists, is formulated with the highest potency active ingredients. Considered by devotees to be the best wrinkle serum to help visibly minimize wrinkles. Delivers a luminous, vibrant, fresh complexion. What It Does Minimizes the appearance of the length, width and depth of a wrinkle. Refines the look of enlarged pores. Improves the appearance of skin texture while imparting radiance and glow.