Hairmetto topical serum for thinning hair is a non-greasy gel serum treatment formulated for daytime use that claims to soothe scalp inflammation and stimulate the hair follicle to promote new growth, where regrowth can be visible within 3 to 6 months.

Medicinal ingredients: cornmint essential oil (Mentha arvensis), rosemary essential oil (Rosmarinus offinalis)

Other ingredients: saw palmetto extract, stinging nettle extract, aqua (deionized), gelling agent, sodium polyacrylate, preservative (Germall Plus).

This hair serum is water-based and alcohol free. It is formulated with saw palmetto, a plant that contains essential fatty acids extracted from the berries, and blocks 5-alpha reductase, an enzyme that converts testosterone to DHT, responsible for hair loss. Rosemary oil has antibacterial properties and there have been small studies that have shown rosemary can be effective in the treatment of hair loss. Cornmint essential oil, also known as Japanese peppermint, has a high concentration of menthol. Menthol increases blood circulation to the scalp, delivering oxygen and nutrients to the hair follicles. It also has antibacterial, antifungal, and anti-inflammatory properties. Stinging nettle extract, in combination with saw palmetto, works against the enzyme causing hair loss, along with anti-inflammatory properties and soothing of the scalp to combat hair loss.

Directions: Can be used day or night. Part the hair and apply to thinning areas. Massage in. Can be air dried or blow dried.

I first noticed thinning hair around age 35 I believe, around the front hairline and front and mids areas. I used The Ordinary’s multipeptide hair serum back in 2018 at age 37 for 6 months, where I did not really notice results. I also used the leave-in root treatment by Alterna Caviar in 2020, hoping for results. I am 42 now. Looking back at 2018, my thinning hair looks relatively the same to now, however, I have noticed, when getting a fringe again maybe about a year ago, the hair was significantly thinner around that area, and the fringe less full than it had been previously. I do not really have any scalp issues; dryness, dandruff, inflammation, etc., but my scalp is very often itchy. I have an oily scalp and dry hair.

Hairmetto topical serum is a lightweight, gel serum that smells strongly of mint. I applied the serum daily in the evening to the hairline and crown, massaging in to the scalp for a minute, then putting on a plastic shower cap, trapping the heat from the scalp, hoping to get a bit longer cooling, tingling sensation from the mint. Without the shower cap, the sensation lasts a few minutes while it dries, maybe a couple more minutes with the shower cap. This is non-greasy, leaving no residue on the hair (I wash my hair every 3 days in the evening). I used this product for 1 year.

In the photos above, I see no results after 1 year of use. I did not notice any difference with scalp itchiness. While Hairmetto Topical Saw Palmetto Serum stimulated the scalp, felt nice with a cooling, tingling sensation, and seems to have the “right” ingredients for hair regrowth, this did not improve my thinning hair. I will not repurchase, and plan to start Rogaine (minoxidil). Rogaine remains the only FDA approved topical ingredient to regrow hair.

Thanks for reading.