Stinging nettle root (Urtica dioica, radix)

Stinging nettle root appears in supplements and hair products that promise to slow hair loss in androgenetic alopecia. It has not shown convincing benefit for this use, and there are no good quality clinical trials of nettle root in male or female pattern hair loss. For androgenetic alopecia, other options with documented effect help, such as topical minoxidil and oral finasteride in men, both chosen together with a doctor. Do not use nettle root in place of such treatment, since this can mean losing the window when a proven therapy works best.

Nettle root (Urtica dioica, radix) is a herbal material promoted for anti-aging and longevity. No convincing benefit has been shown for this use: there is no evidence base supporting an effect on lifespan or aging. The substance is harmless in this role, but an anti-aging effect should not be expected. For healthy aging, the approaches that actually work are well known: sun protection, sleep, physical activity, a sensible diet, and managing risk factors with a doctor.

Stinging nettle root is a plant remedy promoted for "detox" and "cleansing" the body. There is no convincing evidence for this use: the idea of flushing out "toxins" with nettle has no supporting data. The body clears itself through the liver and kidneys, and when these work normally, extra "detox" products are not needed. The plant is harmless in this role, but do not take it instead of treatment with proven benefit, so you do not miss the care you actually need.