uh... so, hims minoxidil looks fine. i've mostly used costco/kirkland brand (you can get this off amazon too). the bigger concern with minoxidil, imo, is price. shit's expensive, so try to get the best deal you can, buy in bulk (it's a long term thing anyways), just make sure it's a 5% concentration.

anyways, i've been on minoxidil for probably 3 years (mostly facial application, too)... and i look my age, tbh i would look older if i didn't minox my temples too lol (fwiw i'm in my 30s). i think minox is probably pretty safe to take re: aging effects, but everyone's body is different, and you always take the risk of something weird happening when you consume Chemicals. i'd probably also consider it safer for topical use than rosemary oil, but i tend to be suspicious of those kinds of oils anyways

btw, it doesn't really matter if you do oil or foam. i've done both, i tend to prefer oil because i feel like it's easier to apply to specific areas. but the foam was... fine. most people seem to prefer foam more, from what i've seen. i don't think it really matters