How does Botox work?

Botox is a protein derived from the bacteria Clostridium botulinum. The protein interacts with nerve endings in contact with muscles, like the muscles in the face. This interaction prevents the release of a molecule called acetylcholine, which is required for the muscle to contract. In this way, the muscle becomes relaxed, and the wrinkles on the overlying skin disappear. It is important to note that during a Botox treatment, the bacteria are not injected into the skin, it is only the protein, so there is no infection and there should be no signs of botulism.