Although unwanted hair growth has been reported on the face and on other parts of the body, such reports have been infrequent. The unwanted hair growth may be caused by the transfer of minoxidil topical solution 2% to areas other than the scalp, or by absorption into the circulatory system of low levels of the active ingredient, or by a medical condition not related to the use of minoxidil topical solution 2%.
Dr. Melissa Piliang, a dermatologist at the Cleveland Clinic, said that Rogaine works better on the top and crown (for reasons not fully understood, the frontal hairline tends to be more resistant to treatment) and ideally should be started as soon as women notice thinning. “Any regrowth you get is a minimal amount,” Dr. Piliang said. “So the more density when you start, the better results you get.”
According to practitioners of traditional Chinese medicine, hair health is tied to two things: kidney energy and the blood, which nourish the hair. The solution: acupuncture and Chinese herbs. While there isn't a lot of hard science to back this up, Maureen Conant, a TCM practitioner at Full Bloom Acupuncture in Seattle, says that she's seen women's hair stop falling out and then gradually regenerate after a few months of weekly treatments.