Having strong, thick hair that grows like weeds is a blessing — and one that many people don’t have, whether it’s due to heat damage or hair loss related to hormones, genes, or what you have. The Internet is crawling with so-called solutions to this, one of them is rosemary tea for hair growth. On TikTok in particular, you’ll find throngs of people tossing rosemary leaves into pots of boiling water to brew a special lotion or spray that they claim grows new hair like a Disney movie magic (or, you know, like Rogen).
Before and after the damn videos of restored hair lines, the question still remains: Is rosemary tea really Promote hair growth? We asked the experts to give us information on whether or not rosemary tea works for hair growth, how it works, and what research exists on the subject.
For context, we’re not talking about a product that the hair brand makes that you can buy off the shelf; We’re talking about a simple homemade remedy of rosemary leaves (which you can buy in the produce section of most grocery stores) dipped in hot water for a few hours. The reddish liquid is then strained; From there, most people turn it into a spray bottle that they can spray on their scalp regularly.
When immediately asked if these things make hair grow faster or thicker than usual, Mona Gohara, MD, a Connecticut board-certified dermatologist, couldn’t give a definite yes or no answer — and for good reason. tl; DR: Rosemary tea has not been shown to directly make hair grow, but there is a small body of evidence to suggest that it may help with the process.
Johara cites a study on rosemary oil – different from rosemary tea but consisting of the same main ingredient, it should be noted. Cosmetic chemist Ron Robinson called for the same study when asked about rosemary’s effect on hair. The study compared the effect of rosemary oil with that of Rogaine (2% minoxidil) in 100 people. “The same amount of hair growth was observed in both groups over a six-month period,” Johara summarizes. “Although this data appears promising, it has not been reproduced.”
She goes on to compare rosemary oil, in this context, to crutches for a broken leg: helpful in the healing process but not the direct cause of healing. More specifically, “rosemary oil removes dirt, strengthens follicles, provides moisture to the scalp, and reduces breakage.” She adds that this creates a better environment for hair growth than it would be without the help of rosemary oil, which explains the results of that similar study.
If you ask a Ginger King cosmetic chemist the same question, she will give you a confident stamp of approval and cite similar effects — but only to rosemary oil, not tea. “It acts as an antioxidant, antimicrobial, anti-inflammatory, and most importantly as a microcirculation enhancer,” she explains. “Antioxidants are essential for all hair care products to maintain their integrity; microcirculation will help re-energize the scalp for better growth.”
Additionally, King mentioned that the antimicrobial powers of rosemary oil improve scalp health and reduce dandruff — plus those anti-inflammatory properties help reduce irritation, and thus itch and scratching. She also notes that there are quite a few clinical studies (some aptly listed here) that have shown evidence of rosemary oil’s effects on hair growth, that it just “takes longer to see results than it does with over-the-counter minoxidil.”
Well, cool – very rosemary oil It is a good dang as far as hair growth goes. But what does that mean for rosemary Tea? It’s made with the same basic ingredient, so it should deliver similar results, right? maybe. “Yes, it’s possible, but I need full research before this can be fully confirmed,” Robinson says.