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As people age, their hair follicles produce less pigment, leading to gray and white hair, due to factors like reduced enzyme activity and damage to melanocyte DNA.

Hair color is determined by melanin produced and transferred in hair follicles.

Cannabinoids may help treat various skin conditions.

CRH in the skin acts like the body's stress response system, affecting cell behavior and immune activity.

The scalp's microorganisms significantly affect hair health and disease.

Hair becomes gray and thin as we age, and while most hair loss in older people is due to genetics, there's a chance for gray hair to regain color under certain conditions.

Fat under the skin releases HGF which helps hair grow and gain color.

P-cadherin is crucial for hair follicle pigmentation but not skin pigmentation.

Melatonin affects skin and hair color and protects skin cells, with potential benefits for hair growth and skin health.

Phospholipase A2 enzymes play key roles in skin health and disease.

Inhibiting PLA2 enzymes may help treat inflammatory skin diseases like psoriasis and dermatitis.

High mTORC1 activity slows hair growth and causes it to lose color.

Blue light therapy is safe for skin and may protect against UV radiation.

Melasma's causes include genetics, sun exposure, hormones, and oxidative stress, and understanding these can help create better treatments.

Hair follicles could be used to noninvasively monitor our body's internal clock and help identify risks for related diseases.

Melatonin may inhibit melanoma growth and has potential as a cancer therapy aid, but its effects on human skin pigmentation need more research.

Removing Dicer from pigment cells in newborn mice causes early hair graying and changes in cell migration molecules.

Taking Vitamin D supplements may increase the risk of skin darkening after laser hair removal.

Environmental pollutants can damage hair health and cause hair loss.

Bimatoprost and clobetasol are both effective for scalp hair loss, but bimatoprost works faster, has fewer side effects, and grows more colored hair.

AIDS may cause changes in the scalp that increase infection risk and hair loss.

Cannabinoids like CBD and THC may help treat non-cancer skin diseases, but more research is needed.