The Complete Handbook of Hair Loss Treatments

Chapter 1: Understanding Hair Loss Treatments

Hair loss treatments are defined less by what they are than by what they are not. They are not cosmetics in the traditional sense, though they are sold in the same aisles. They are not pharmaceuticals in the prescription-only sense, though the most effective ones are drugs. They are a distinct commercial and medical category that exists at the intersection of dermatology, endocrinology, and consumer retail. This category encompasses any product, procedure, or device that claims to prevent, slow, or reverse the miniaturization of hair follicles and the subsequent thinning of scalp hair. To understand this category, you must first understand the biological problem it solves, because every effective treatment is designed to interrupt a specific step in the pathology of hair loss.

Hair loss is not a single condition. Androgenetic alopecia, also known as male or female pattern baldness, is the most common form, accounting for over 95 percent of all hair loss in men and a significant majority in women. Telogen effluvium is a temporary shedding condition triggered by stress, illness, or hormonal changes. Alopecia areata is an autoimmune disorder characterized by patchy hair loss. The treatments a professional will encounter, recommend, or sell are overwhelmingly targeted at androgenetic alopecia. This is because the other forms are either self-correcting or require systemic medical intervention that goes beyond the scope of a retail or salon environment. This book, therefore, focuses its biological explanations on the mechanism of androgenetic alopecia, while acknowledging that a