In case your TikTok’s FYP is usually an limitless scroll of beauty hacks, you’ve likely stumbled upon videos on using rosemary oil for hair growth. Some creators are boiling rosemary leaves, concocting custom rinses and sprays at home. Others are taking the more convenient route of snagging a ready-made product from their local beauty supply store.

Despite the fascinating before-and-afters showcasing these users’ hair growth transformations, one query lingers: Does rosemary oil actually work to grow and regrow hair? In any case, this wouldn’t be the primary time the app duped us with a bogus hack. (We still can’t recover from sea salt pimples sprays.)

Ahead, we spoke with board-certified dermatologists and a chemist to find out whether rosemary oil is a legitimate treatment for promoting hair growth.

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• Leah AnsellMD, is a board-certified dermatologist at Treiber Dermatology Associates in Recent York.
• Kiara Brumfield is a chemist and licensed cosmetologist in Chicago.
• Jessie CheungMD, is a board-certified dermatologist and founding father of Cheung Aesthetics & Wellness in Chicago.
• Iris Rubin, MD, is a board-certified dermatologist and founding father of SEEN Skin & Hair Automotive in Maryland.
• Karan LalMD, is a board-certified dermatologist and director of cosmetic dermatology at Affiliated Dermatology in Scottsdale, Arizona.
• Blair Murphy-RoseMD, FAAD is a board-certified cosmetic and medical dermatologist specializing in facial rejuvenation on the Laser & Skin Surgery Center of Recent York and a clinical instructor of dermatology at Weill Cornell Medical College.

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• What’s rosemary oil?
• What are the advantages of rosemary oil for hair?
• Can rosemary oil help grow hair?
• The way to use rosemary oil for hair growth
• What are the potential unwanted side effects of using rosemary oil for hair growth?
• What hair products contain rosemary oil?

Rosemary oil is a vital oil extracted from the flowers and leaves of the rosemary plant (a.k.a Rosmarinus officinalis), explains chemist and licensed cosmetologist Kiara Brumfield. Likelihood is, you’re no stranger to the plant’s short, needle-like leaves — it’s a fragrant garnish for every thing from breakfast potatoes to specialty cocktails — however the plant’s essential oils are also a primary ingredient in lots of beauty products, especially on this planet of hair care.

While people mistake rosemary oil for rosemary extract, the 2 have notable differences. In keeping with Iris Rubin, MD, a board-certified dermatologist and SEEN Skin & Hair Care founder, rosemary oil is purer and, thus, stronger. Extracts typically contain compounds from the plant’s leaves and should be combined with a carrier oil. This reduces the concentration of rosemary and makes it less more likely to cause irritation. For example, The Mane Selection Alpha Multi-Vitamin Scalp Growth Oil has carrier oils like jojoba and coconut oil, which help minimize potential sensitivities.

While rosemary oil is usually hailed as an efficient ingredient for promoting hair growth, these are the proven advantages supported by clinical evidence.