Hair loss affects millions of men and women worldwide, delivering a devastating blow to personal, social, and professional life. It begins without warning, slowly shutting down thousands of hair follicles across the scalp. For men, hair loss attacks the frontal hairline first, then progresses across the top of the head and into the crown. Women have a more diffuse pattern of hair loss, with widespread thinning and shedding typically affecting the entire scalp at once.
For both men and women, the signs of thinning, shedding, and balding aren’t usually noticed until after hair follicles begin to shut down. Hair loss experts call these phenomena follicle miniaturization or senescence—both conditions indicating that hair follicles have stopped supporting a natural hair growth cycle. In the fight to keep your thinning hair, how do you know which treatments for hair loss will work?