Both Dr. Benjamin and Dr. Mariwalla agreed that your late 20s to early 30s are a good time to consider the procedure, assuming you've been taking care of your skin along the way. (Dr. Benjamin defines this as "proper cleansing with a gentle moisturising facial wash, wearing sunscreen daily, and removing makeup each night.")
"The goal is not to have any fine lines at rest, so you can do a little when there are a few lines, but go easy."
A good way to tell if you're ready for Botox is to note how many fine lines you see on your forehead, eye area, or mouth when you're not making an expression. "It's OK to be able to move your forehead," Dr. Mariwalla said. "The goal is not to have any fine lines at rest, so you can do a little when there are a few lines, but go easy — you also don't want weird forehead atrophy when you are older that then needs filler."
So, is there such a thing as getting it too young? Well, according to Dr. Mariwalla, yes. "I typically won't inject anyone under 21," she explained. "Only start in your mid 20s if you have a lot of sun damage — think California surfers who have been out in the sun most of their lives — or can see visible fine lines. Movement is normal, and not something you need to stop at a young age."