2:08

Dr. Shervin Naderi injects Botox into crow's feet on a staff member named Kat. The key risk: inject too deep and you paralyze the zygomaticus muscle, which kills your smile. Results show in 20 minutes and last three to four months.

Questions this video answers

Four drops on one side.

About 20 minutes.

Three to four months.

About three to four times a year.

The lateral canthus part of the orbicularis oculi.

Chapters

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