Cosmetics coat the surface of the skin and hide imperfections. The most popular cosmetic drugs, the "cosmeceuticals" glycolic acid and vitamin C, penetrate the skin and improve appearance. The true pharmaceuticals, tretinoin (Retin-A) and hydroquinones (fading creams), alter your genetic destiny and can reverse signs of aging. These drugs work slowly, generally taking months or years to show any effect.
Find out more about this book:Straight Talk about Cosmetic Surgery (Yale University Press Health & Wellness)