Neuronox is also produced by the Korean company Medytox. It is a bacterial endotoxin secreted by the deadly botulinum botulinum. It is a toxic protein secreted by botulinum during reproduction. Began to treat facial muscle spasms and other muscle movement disorders. Later it was used in medical aesthetics, using it to block nerve impulses between nerves and muscles, relax small muscles that contract too much, and achieve wrinkle removal. The muscles can be atrophied to achieve contour modification. It is usually said to wrinkle and thin face.