Regaine for Women 4 month supply once a day scalp foam is a medicine used to treat common female pattern hair loss in women aged 18 – 65 years, by preventing further hair loss & helping hair re-growth. It contains minoxidil, which is thought to work by aiding the blood flow to the hair follicles on your scalp. The medicine is for use in women aged between 18 & 65 years. Regaine women foam works best in women who have general hair thinning of the scalp. Those who are younger or have been losing hair for a short period of time are likely to experience the best results. You are unlikely to benefit from Regaine if you have been balding/thinning for many years or have a large area of hair loss. Hereditary hair loss is recognisable because: Of the pattern of hair loss, it starts gradually & progresses, you have a family history of hair loss, & no other symptoms are present with your hair loss.