Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.
The 11s – those vertical lines that appear between your brows – form 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.
