Botox has become increasingly popular with people in their 20s seeking to stave off wrinkles.

Clinics market what is known as "baby Botox," lower dose treatments administered less frequently than those for midlife adults — perhaps only once or twice a year.

Patients share the process in online videos filmed from injectors' offices , asking for a touch up to blur away any hint of crows feet or 11 lines between the brows.

It may seem absurd that anyone so young would be worried about aging. But like putting on sunscreen, patients say their use of Botox is preventive.

Botox is a brand name for botulinum toxin type A, an injectable neurotoxin derived from the bacterium that causes botulism. Other brand names include Dysport, Xeomin and Jeuveau. When administered in small amounts, the tre

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