Although BOTOX is related to the same toxin, when used in tiny doses, it is extremely effective in treating certain facial flaws. It functions to block certain nerves or by weakening specific muscles. The cosmetic is highly purified protein derived from this toxin. The doses used in cosmetic treatments are extremely small, and FDA approval means that when used correctly, the product is safe for use on consumers. However, it is important that the medical professional administering BOTOX is highly educated, and has a full understanding of facial muscles and nerves.