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Scarlett Johansson shared one hair product she always keeps in the shower — the Goop Himalayan Salt Scalp Scrub Shampoo, which belongs to fellow celebrity Gwyneth Paltrow‘s brand. This shampoo has all the ingredients to detoxify, purify, and deeply cleanse your scalp — perfect if you have buildup or if you waited a few days to wash your hair. There are plenty of benefits to using this shampoo, including deeply cleansing your scalp, it acts as a nice mᴀssage for your scalp and your hair will feel shiny and fresh after using.

“I really love the Goop Himalayan Salt Scalp Scrub Shampoo,” Scarlett told Allure. As for ingredients, there is cold-pressed moringa oil, which is high in omega-9 fatty acid and vitamin E, and rosehip oil, which is also rich in omegas to ensure your scalp is cleansed and hydrated. The smell is divine with hints of rosemary, geranium, orange, and peppermint. After using it, your hair will feel as good as new. We all have some unwanted build-up in our scalp that you may not even know about — often from oil, products, or dandruff, and this scalp scrub can cleanse it all away.

“I use this hair mask every third hair wash day. It leaves my hair feeling refreshed and clean! Would highly recommend,” an Amazon customer shared about their experience with the product. Another said, “I don’t know what magic formula Gwyneth dreamed up, but I hope she never changes it. This flushes out the oil or whatever and gives me post-salon hair when I blow dry after using it.”