Botox has become a household name in the world of cosmetic treatments, with millions of people opting for the procedure to reduce wrinkles and fine lines. But have you ever wondered how Botox actually works? In a recent study published in the journal Science, researchers have uncovered the mechanism behind how Botox enters neurons and paralyzes muscles. Illustration of Clostridium botulinum, bacteria that produce botulinum neurotoxin Shutterstock/MZinchenko Botox, or botulinum toxin, is a neurotoxin produced by the bacterium Clostridium botulinum. When injected into the skin, it blocks the release of acetylcholine, a neurotransmitter that signals muscles to contract. This results in a temporary paralysis of the muscles, which smooths out wrinkles and fine lines. But how does Botox actually enter neurons to block the release of acetylcholine? The study found that Botox binds to a protein called SV2, which is found on the surface of neurons. SV2 is involved in the release of neurotran...