How Long Should You Leave Dry Shampoo In For?

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If the idea of having your skin examined under a microscope for aesthetic purposes—complete with a corresponding list of everything you’re doing incorrectly—gives you pause, strap yourself in for the next-level in zoomed-in beauty: the capilliscope.

Created and patented by hair-care expert René Furterer a few decades back, the scalp microscope (it sort of looks like a radar gun that has the somewhat-cool, somewhat-scary side effect of being able to project a very zoomed-in version of your scalp, coupled with hair follicles, on to a nearby screen) literally shows everything that’s going on in the skin on your scalp.

As Chuck Hezekiah, the brand’s Education Manager, Retail and Salon, shared, my personal diagnosis was, in the simplest terms, a rap sheet that involved too much dry shampoo—which his super senses could tell I wasn’t brushing out after I applied (guilty as charged), with a side offense of some scratching.

According to Chuck, leaving dry shampoo at the roots (aka, that oh-so-simple move of spraying it on your scalp and going to sleep) is good for styling, but when trying to get the hair and scalp clean, brushing out the dry shampoo is key because it “not only removes not only the dry shampoo but the oil, dirt and odor that the dry shampoo just absorbed.”

His advice: Invest in a “natural boar bristle brush, because it helps the grab the dry shampoo and helps brush it away.”

“The whole point of dry shampoo is to have a quick easy way to clean the hair, not just mask the dirt, oil and odor. Leaving your dry shampoo on the scalp over time can cause buildup. By simply brushing the hair and scalp you distribute the dry shampoo plus you exfoliate the scalp and promote healthy circulation.”

“Remember, beautiful hair grows from a healthy scalp.”

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