What Ages Hair?

February 2017 in “ International Journal of Women's Dermatology ”

Assaf Monselise, David Cohen, Rita Wanser, Jerry Shapiro

pattern hair loss dihydrotestosterone senescent alopecia minoxidil androgenetic alopecia hair fiber damage anti-inflammatory effects male-pattern baldness age-related thinning scalp health UV protection PHL DHT AGA Rogaine

TLDR Hair aging and loss are caused by genetics, hormones, environment, and grooming, with treatments like minoxidil effective for certain types of hair loss.

The document from 2017 outlines that hair aging and loss are influenced by genetic, hormonal, environmental, and grooming factors. It notes that 50% of men by age 50 and 38% of women over 50 are affected by pattern hair loss (PHL), with hormonal factors like dihydrotestosterone (DHT) being significant in men, while women's PHL may involve other factors. Senescent alopecia, characterized by a reduction in hair number, can occur with or without PHL. Environmental and grooming practices, such as frequent shampooing and chemical treatments, can worsen hair fiber damage. Minoxidil is highlighted for its anti-inflammatory effects and proven efficacy in treating male-pattern baldness, with potential benefits for age-related thinning. The document stresses the complexity of hair aging, the need for individualized treatments, and the importance of early medical intervention and proper hair care. It concludes that while hair care products can improve hair fiber health, their effectiveness beyond that is unproven, and more research is needed to assess their impact on scalp health and slowing PHL. Minoxidil is effective for androgenetic alopecia (AGA) and may also help with age-related thinning, emphasizing the need for public education on grooming and UV protection to prevent hair loss.

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