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POPSUGAR: Let's start from the beginning: What is electrolysis?

Ronni Kolotkin: Electrolysis is the only method of hair removal that is permitted to say "permanent" by the FDA. It's a process. It's not a magic wand. It's not an instant fix. And if it's taken to the end, it will be permanent for the rest of your life.

PS: What happens during the service?

RK: A tiny little needle — that's finer than a hair — goes into the follicle. A slight bit of current travels to the tip of the needle, and it seals off the root. Once the root is sealed off, that root cannot produce another hair.

PS: How many times do you typically have to treat each hair?

RK: Probably about two. A thicker hair would have to be treated about three times, and a fine hair can sometimes be treated once. If the hair comes back after one treatment, it can often be so fine that you wouldn't even notice it.

PS: How long does it take to do an area like your lip versus your leg?

RK: A lip is not a big deal because you can come in for a series of 15-minute treatments for your upper lip. It depends on how much hair you have. It's hard to tell without seeing the amount of hair. The more hair you have, the more treatments you would need. Some people need three treatments; some people need 12 treatments.

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