Botox works to temporarily weaken or paralyze the muscles in the face. It blocks the nerve signals which causes the treated muscle to relax. As a result, the treated muscles will not be able to move as much as they once did, helping to soften and reduce wrinkles. In some patients, Botox can even remove the appearance of wrinkles entirely. Not only does Botox work to treat existing wrinkles but it helps to reduce the chance of future wrinkles from developing in the first place.