Clearly, minoxidil is not a miracle drug. While it can produce some new growth of fine hair in some — not all — women, it can't restore the full density of the lost hair. It's not a quick fix, either. You won't see results until you use the drug for two months. The effect often peaks at around four months, but it could take longer, so plan on a trial of six to 12 months. If minoxidil works for you, you'll need to keep using it to maintain those results. If you stop, you'll start to lose hair again.
When it comes to a hair growth shampoo, you have two options: prescriptions or over-the-counter treatments. Prescription shampoos like ketoconazole are anti-androgenetic, meaning they prevent testosterone and dihydrotestosterone (DHT), two hormones associated with hair loss by targeting hair growth at the site of the follicle and helping to interrupt the hormone cycle locally that causes thinning,” explains Dr. Schweiger. “Over-the-counter growth shampoos typically contain amino acids and antioxidants to provide the components to rebuild hair as well as reduce damage and inflammation.”
In either sex, hair loss from androgenetic alopecia occurs because of a genetically determined shortening of anagen, a hair's growing phase, and a lengthening of the time between the shedding of a hair and the start of a new anagen phase. (See "Life cycle of a hair.") That means it takes longer for hair to start growing back after it is shed in the course of the normal growth cycle. The hair follicle itself also changes, shrinking and producing a shorter, thinner hair shaft — a process called "follicular miniaturization." As a result, thicker, pigmented, longer-lived "terminal" hairs are replaced by shorter, thinner, non-pigmented hairs called "vellus."
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.