Histemo Ultra Scalp Care ShampooHistemo Ultra Scalp Care Shampoo The best hair loss shampoo for women will probably not be found at your local drug store. A quality hair growth shampoo for women will be anti androgenetic, meaning that it will work on inhibiting the two hormones known to cause hair loss. They are dihydrotestosterone (DHT) and testosterone. Such a shampoo will target the growth of hair right at the follicle and interrupt the hormones cycle so as to stop thinning.