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Why Does Skin Age?
Aging skin and wrinkles result from a combination of many factors. It’s not just about cellular changes, collagen depletion, hormone loss, or damage caused by free radicals. The 11s – those vertical lines that appear between your brows – result from muscle contractions. When you concentrate, squint, or frown, the muscles between your brows contract, causing your skin to furrow and fold. After years of frequent contraction, those wrinkles can linger even after the muscles are at rest.
 Relaxed glabellum muscles |  Contracted glabellum muscles |
BOTOX® Cosmetic works by blocking nerve impulses to the injected muscles. This reduces muscle activity that causes the persistent lines to form between the brows.
