At this point you'd be hard pressed to find someone who hasn't heard of Botox's ability to fight fine lines and wrinkles. "It's one of the number one treatments I do at my practice," says Dr. Dennis Gross, MD, a dermatologist and dermatological surgeon. "There's no golden age to start Botox — every person ages differently due to genetics and lifestyle choices and there's no age where you're too old for Botox. That being said, Botox is only FDA-approved and available for patients 18 and older." It's also worth underlining that Botox is not safe for people who are pregnant, breastfeeding and, those with a neurological disease, need clearance from their neurologist.

While the appearance of frown lines may prompt most people's first doctor visit to inquire about Botox, there's an increasing amount of research on how the injections can have a myriad of other benefits ranging from the purely cosmetic to the management of chronic pain, treatment of muscle spasm disorders like cerebral palsy, studies have even shown that Botox can help with an overactive bladder.

To find out more about the lesser known benefits of Botox we chatted with leading dermatologists.

Image via Imaxtree

Given that most people see Botox as a treatment once they start to notice major fine lines and wrinkles, you might not realize that the best way to approach the injections is from a preventative angle. "One test you can do is try raising your eyebrows and holding them there for five seconds, if the expression lines stay, you may want to consider Botox," says Dr. Gross. "Botox at this stage would be preventative and should be administered conservatively, a treatment I refer to as 'Baby Botox.'" Dr. Paul Jarrod Frank, a cosmetic dermatologist and the author of "The Pro-Aging Playbook" agrees. "If you start with small amounts of Botox and filler in your early thirties, when lines first start forming, you'll never get deep ones like we see in people in their forties and fifties. Small consistent changes and essential habit formation prep people for a hopefully long and graceful haul of aging."

Image via Imaxtree

Botox injection into the bladder is an FDA-approved treatment for an overactive bladder, although, according to Dr. Gross, this is typically a last resort if other medications and therapies are not effective. "You administer a series of injections into the wall of the bladder about every six months when the Botox wears off. However this is not done by dermatologists."

Image via Adene Sanchez/Getty

You can use Botox to decrease migraines, however, like with treating an overactive bladder Dr. Gross underlines that this is something that should not be done by a dermatologist, but rather by a neurologist.

Image via Imaxtree

Hyperhidrosis is a term for excessive sweating. "Botox blocks the nerves' signals that cause sweating, in turn stopping the sweat glands from over-producing sweat," explains Dr. Gross. "The most popular area is the under arms. You should seek another Botox treatment every four to six months to maintain efficacy."

Image via Westend61/Getty