Rosemary oil is a popular go-to for those watching their hairline disappear. Research studies on rosemary oil for hair loss have been promising, but not conclusive.
Others swear by green tea extracts applied topically or just drinking tons of green tea. Again, there have been minimal but promising studies on green tea’s impact on DHT.
Saw palmetto is the darling of the hair loss internet. A known anti-androgen, liposerolic extract of the fruit of Saw Palmetto has been shown to effectively block DHT. Some take saw palmetto pills, but for that to work you must take a huge amount, which can cause side effects by upsetting the hormonal balance. Others apply the saw palmetto oil directly to the scalp, which should work in theory, but as a standalone treatment - questions remain.
Tomatoes may be more than just a tasty salad ingredient. They are full of lycopene, as are all red fruits and vegetables. Some researchers say that lycopene may moderate DHT levels, but that actual results on baldness are still undetermined.
More than just a massage therapist favorite, lavender oil has been shown in mouse studies to promote hair growth. Without formal human studies though, we’d advise against slathering it on and smelling like a spa all day.