Carol's questions affects millions of people who have this cosmetic treatment every year to eliminate wrinkles on their faces. Dr. Oz says Botox comes from Clostridium botulinum, the bacterium that causes botulism. Small amounts can block the ability of nerves to stimulate muscles, he says. "So some of the lines between the eyes, the crow's feet, they're caused by muscles that keep scrunching back and forth, and they create a hinge in your skin," Dr. Oz says. "The Botox injection blocks that."
Dr. Oz says each injection works for about four months, and that it's not dangerous to have the injections sparingly. "But you've got to get someone who knows how to use it. Everybody who is a doctor in America can put Botox in you. But not everyone knows how to do it right," he says. "If you're going to have Botox injections, you should have them done by a plastic surgeon or a dermatologist."