A Cleveland Clinic expert answers our questions about Botox—and she says there's one key nutrient that could make all the difference.

Lydia August, 28, told Newsweek, "I have not shown any improvement," since the treatment was done 12 days ago.

Using anti-wrinkle injections in the way Sydney does is known as "preventative botox". Botox users in their 20s and early 30s hope to prevent lines forming in the first place, or to target a crease ...