Here, in-demand experts share their guidelines for women in their 20s.
Botox isa neurotoxininjected to treat wrinkles and reduce the appearance of fine lines.
Botox is injected over time in strategic places in the face where there are already visible wrinkles.

Photographed by Sharif Hamza, Vogue, October 2013
[Its] a cross between prevention and rejuvenation, she says.
The idea is to start early to preemptively before visible lines form.
Engelman says shell typically first cleanse the skin of dirt and makeup with a mild solution.
[This is all] to avoid the formation of deeper lines.
When those strong muscles contract repeatedly every day, over time they can lead to more etched lines.
Treating these areas can help reduce muscle tension on the face, Dr. Kourosh adds.
Another area to consider is the neck.
Preventative Botox Cost
There is no difference between preventative Botox and Botox cost-wise.
How Often Should You Get Preventative Botox
This is also dependent on the person and their needs.
Lines get deeper and deeper with age, explainsPatricia Wexler, MD, of Wexler Dermatology in Manhattan.
Translation: You need even more Botox for the newly recruited muscles, says Wexler.
For younger women, injections can be used to treat areas with acne scarring or hollowness under the eyes.
As top dermatologistDavid Colbert, M.D.
This relaxes the outer layers of the circular muscle around the lips and looks much more natural than filler.
Engelman says that using sunscreen daily will help prevent sun damage, sunburn, andsigns of aging.
you’re able to also turn to in-office treatments.
But the best advice of all?
Forget about those self-perceived imperfections and smile.
You’re only in your 20s once.