Ofc non of these are "fda approved" for hair treatment, there would be no money for the medical industri then.
But there are also more evidence than "anecdotal". However how good they work for everyone is the same as with finas and minoxidil. Some respond others dont.
Rosemary oil.
"RO-ext showed inhibitory activity of 82.4% and 94.6% at 200 and 500 µg/mL, respectively."
These results suggest that they inhibit the binding of dihydrotestosterone to androgen receptors. Consequently, RO-ext is a promising crude drug for hair growth.
https://www.ncbi.nlm.nih.gov/pubmed/22517595
Saw palmetto,
"(
Serenoa repens) has been used as a natural treatment for androgenetic alopecia and has a similar mechanism [
23]. Interestingly, in a recent study, it was found that 38% of males with Androgenetic Alopecia which received
Serenoa repens at 320 mg every day for 24 months showed increased hair growth."
Pumkin seed oil.
"76 male patients with Androgenetic Alopecia received 400 mg of PSO per day or a placebo for 24 weeks. Change over time in scalp hair growth was evaluated by four outcomes: assessment of standardized clinical photographs by a blinded investigator; patient self-assessment scores; scalp hair thickness; and scalp hair counts. Reports of adverse events were collected throughout the study. After 24 weeks of treatment, self-rated improvement score and self-rated satisfaction scores in the PSO-treated group were higher than in the placebo group (
P = 0.013, 0.003). The PSO-treated group had more hair after treatment than at baseline, compared to the placebo group (
P < 0.001). Mean hair count increases of 40% were observed in PSO-treated men at 24 weeks, whereas increases of 10% were observed in placebo-treated men (
P < 0.001). Adverse effects were not different in the two groups."
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4017725/
Nettle root
It binds to the adrogen receptor in both scalp and prostate, hence helps blocking the DHT to attach to hair follicle.
