Anti wrinkle toxin 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 botulinum given to correct wrinkles has been used safely for decades.

This toxin 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.

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Treatments made with botulinum toxin are sold under the brand names Botox Cosmetic, Dysport, and Xeomin.

Anti wrinkle injections only works on wrinkles that are caused by muscle movement. These are known as dynamic wrinkles, and are often called “expression lines.”

The most common dynamic wrinkles that Botox can treat are lines on the upper face, such as the “11” between the brows, horizontal lines on the forehead, and crow’s feet around the eyes. These lines are caused by smiling, frowning, squinting, and other facial expressions.

The Toxin will not work on fine lines and wrinkles caused by sagging or loss of plumpness in the face. These are known as static wrinkles. Static wrinkles include lines in the cheeks, neck, and jowl areas.

Anti Wrinkle injections are not a permanent treatment. Repeated treatments are necessary for continued wrinkle-reducing effects. Most people find that the muscle-relaxing effect of the toxin lasts for 3 to 4 months.

The ASPS considers Anti wrinkle injections to be safe, and 6.7 million procedures were performed in 2015. As the toxin wears off over time, most side effects are only temporary.

Possible side effects of Anti wrinkle injections include:

Drooping of the eyelid or brow if injected near the eye

Weakness or paralysis of nearby muscles

Hives, rashes, or itching

Pain, bleeding, bruising, swelling, numbness, or redness

Headache

Dry mouth

Flu-like symptoms

Nausea

Blurry vision or vision problems