Your scalp is not supposed to be sterile. Explore the ecosystem beneath your hair, the emerging science, and the limits of microbiome claims.

Iron and vitamin D can belong in a hair-loss investigation, especially with diffuse shedding, but deficiencies should be tested and interpreted in the context of your health."

Dandruff is not caused by poor hygiene. Flakes can reflect subtle inflammatory activity within the scalp, which is why supportive care should focus on the skin—not shame or aggressive scraping.

Hormonal shifts can affect how long hair grows, when it rests and sheds, and how thick strands become—but pattern, timing, and qualified evaluation matter.

Lavender may interact with hormone-related pathways under some conditions, but current evidence does not show that typical use routinely causes harmful hormonal disruption in adult women.

Minoxidil may support regrowth when follicles remain viable, but it cannot outwork continued pulling. Learn why reducing tension remains the foundation of traction-alopecia care—and where minoxidil may fit.

CCCA has usually been framed as an adult condition, but pediatric cases reinforce a vital lesson: progressive crown thinning and persistent scalp symptoms deserve attention early.

Increased shedding during GLP-1 treatment may reflect rapid weight loss, reduced intake, nutritional gaps, or physical stress. Learn how timing and pattern offer important clues.