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Prolactin contributes to hair loss by promoting hair follicle shrinkage and cell death.

Hibiscus rosa-sinensis leaf extract helps hair grow longer and faster.

Hair analysis can detect cocaine use but doesn't accurately show the amount or timing of use.

We need more research on human hair follicle pigmentation, not just mouse models.

Vitamin D receptor helps control hair growth and could be used to treat certain skin tumors.

Mice hair growth patterns get more complex with age and can change with events like pregnancy or injury.

Stress can stop hair growth in mice, and treatments can reverse this effect.

Oxidative stress contributes to hair graying and loss as we age.

The BASP classification is a detailed and accurate way to categorize hair loss in both men and women.

Stress can cause hair loss by negatively affecting hair follicles and this effect might be reversed with specific treatments.

Dexamethasone speeds up hair loss in mice, while cyclosporin A slows it down.

Beard hair follicles have more androgen receptors than non-balding scalp hair follicles.

Maternal stress during pregnancy affects a child's stress levels.

Optimizing drug delivery to hair follicles is crucial for effective treatment.

Hair follicles produce and respond to melatonin, affecting hair growth and sensitivity to estrogen.

Eclipta alba extract may help hair grow similarly to Minoxidil.

Terbinafine quickly builds up in skin and hair, staying effective for over 3 weeks.

The telogen phase of hair growth is active and important for preparing hair follicles for regeneration, not just a resting stage.

Mutations in three genes cause Uncombable Hair Syndrome, leading to frizzy hair that can't be combed flat.

Nanoparticles can deliver vaccines through hair follicles, triggering immune responses and providing protection.

Finasteride and minoxidil are effective for hair regrowth, while treatments for alopecia areata have varying success and continuous treatment is necessary.

Macrophages help regrow hair by activating stem cells using AKT/β-catenin and TNF.

Red light therapy at 655 nm significantly improved hair growth in men with hair loss.

Human hair's strength and flexibility vary by ethnicity, damage, and treatment.

Hair grows faster in the morning and is more vulnerable to damage from radiation due to the internal clock in hair follicle cells.

Hair loss occurs due to fewer papillary cells, smaller follicles, and shorter growth phases.

Trichohyalin is a protein in hair follicles that helps form hair filaments.

Androgens have complex effects on hair growth, promoting it in some areas but causing hair loss in others, and our understanding of this is still evolving.

Thyroid hormones help hair grow, reduce hair loss, and increase hair pigment.

Different ethnic groups have unique hair growth patterns, with African hair growing slower and less dense, Asian hair growing fast but sparse, and Caucasian hair being densest; men are more likely to experience hair loss than women.