Mediterranean rosemary leaves are used to make rosemary oil. Like basil, lavender, and sage, rosemary is an aromatic herb used to season vegetables and drinks.
Its scent and ability to soothe skin make it popular in perfumes and skincare and haircare products.
Depending on who you ask and just how seriously you take its little data, rosemary oil or extract may help hair growth.
Can Rosemary Oil Actually Make Your Hair Grow?
Rosemary leaf extract promoted hormone-related hair regrowth in mice in 2013.
Oligee and dermatologist also note a 2015 research that compared rosemary oil extract to minoxidil for males with hereditary androgen-related hair loss.
Why does rosemary oil promote hair growth? One 2010 study found that rosemary oil's carnosic acid may activate and repair nerve tissue, which may help your scalp develop hair.
According to a 2017 research, rosemary oil's other primary ingredients—α-pinene, 1,8-cineole, camphor, and borneol—may also help hair growth.
Rosemary oil may help increase blood flow to the follicle and reduce cell-damaging free radicals.
Rosemary oil has been used in skincare for hundreds of years because it can do a dozen things for your scalp.