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Yahoo Senior Beauty Editor Jennifer Romolini swears by this frizz-reducing bestseller.

“Every once in a while a popular internet-famous product comes along that I don’t think will ever work in 100 years, and then I’m pleasantly surprised (OK, more like shocked) when it does,” she admits. “Such was the case with this strange little tube of the TikTok-famous collagen and protein hair mask from Elizavecca.

It’s a repairing treatment designed to turn even the driest, most straw-like hair into silky smooth hair. You work it into your hair after shampooing, and after 5-15 minutes the before-and-after is seriously profound: my thin, dry, long-lasting blonde mane was bouncy, soft and smooth like a layer of satin and, best of all, felt not burdened. Although it makes your hair slightly greasier than usual, the care effect is worth it – my results lasted for weeks.”

While not the biggest discount, you can’t argue with paying just seven bucks for a tube!

Check out her roundup of the Amazon beauty products she’d buy again for more.