Hair Revitalization prevents Hair Loss: A Multifactorial Concern Androgenic Alopecia is the most common form of hair loss that afflicts both males and females, affecting almost 80% of men and 40% of women below the age of 70. Causes of hair loss are multifactorial and include inherited genetic susceptibility and aging. These factors influence stem cell activity in the hair follicle, causing aberrations to the hair cycle.