Even the basic mechanism by which crystal hair erasers work is unclear. "I've read and listened to a lot of advertisements about this and, I'm still dubious on the mechanism of action," says, MD, a board-certified dermatologist in Hamden, Connecticut. "Most claim that an etched crystalline surface makes the hair clump and fall off. When etched glass hits the skin, I think 'cutting' instead of 'clumping' is the more accurate verb.
In fact, Gohara thinks the mechanism is pretty much the same as a standard razor. "This surface cuts the hair down at the follicle opening.", MD, a board-certified dermatologist in New York City, is even more skeptical of their mechanism. "It is touted to use 'crystal nano technology,' whatever the heck that means, to physically clump hair and literally tear it at the skin's surface.
I can confidently tell you, though, that these often-generic devices do come with some risk of irritating the hell out of your skin — especially if you use them on sensitive areas such as your armpits or inner thighs. "This seems like an incredibly abrasive and aggressive way to remove hair that can lead to significant redness of the skin, irritation, andAn example of what literally every single crystal hair remover looks like.
The good news is that it's not a life-and-death matter if you do decide to try one out for curiosity's sake. If you do, Gohara simply recommends that you stave off any body exfoliation before you use it and follow it up with "tons of
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