A new experimental treatment for hair loss may improve the effectiveness of minoxidil by pairing it with a natural compound taken from the Stevia plant. Researchers created a dissolvable microneedle patch that delivers both minoxidil, the active ingredient found in products such as Rogaine, and stevioside, a sweet-tasting extract from Stevia leaves. In tests on mice with androgenetic alopecia, also known as pattern hair loss, the combined treatment produced significantly stronger regrowth than standard approaches. After 35 days, the mice treated with the Stevia-based patch regained hair over roughly two-thirds of the affected area, while conventional treatment groups showed regrowth in only about one-quarter. Scientists believe stevioside may help overcome one of minoxidil’s biggest limitations: difficulty penetrating the skin effectively. Traditional topical formulas do not always absorb deeply enough into the scalp to reach hair follicles efficiently. Some dermatologists already pair minoxidil with microneedling, which uses tiny punctures in the skin to improve delivery. This new patch merges both techniques into a single treatment. The microscopic needles dissolve into the skin, creating tiny channels while releasing the active ingredients directly into the scalp. Researchers say stevioside appears to improve how well minoxidil dissolves and spreads through the skin, increasing the amount available to the follicles. The study also examined the hormonal processes involved in hair loss. Pattern baldness is strongly linked to dihydrotestosterone (DHT), a hormone formed when the enzyme 5-alpha reductase converts testosterone into a more potent form. Over time, DHT can weaken hair follicles and shorten their growth phase. Minoxidil may help offset some of these effects by stimulating follicle activity and influencing pathways involved in hair growth. Although the results are promising, the researchers stress that the work is still in its early stages. The treatment has only been tested in mice so far, and human hair biology is far more complicated. Clinical trials will be needed to determine whether the same benefits can be achieved safely and effectively in people.

A proton therapy machine rotates around the patient, delivering highly focused beams that target cancer with extreme precision while sparing healthy tissue.