Botox and dermal fillers are cosmetic treatments given through injections, usually in a doctor's office. They are minimally invasive, meaning they do not involve surgery. That is where their similarities end, however. Botox is a purified form of the botulinum toxin that is obtained from bacteria. Though it is deadly in larger amounts, the tiny, regulated amount of Botox given to correct wrinkles has been used safely for decades.
Botox works by blocking nerve signals in the muscles where it is injected. When those nerve signals are interrupted, the affected muscle is temporarily paralyzed or frozen. Without movement of these selected muscles in the face, certain wrinkles may be softened, reduced, or even removed.