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Melatonin, usually known for sleep regulation, also has antioxidant properties that can protect skin, stimulate hair growth, and improve skin conditions, with topical application being more effective than oral use.

PRP shows promise for improving facial wrinkles, skin elasticity, and hair growth, but more research is needed to standardize its use and understand its effects.

Oxidative stress damages hair and contributes to aging, and managing it can help maintain hair health.

Plant adaptogens may help treat skin diseases and improve skin health, but more research is needed to fully understand how they work.

Thermal spring waters and their microbes could be good for skin health and treating some skin conditions in skincare products.

Hair ages and thins due to factors like inflammation and stress, and treatments like antioxidants and hormones might improve hair health.

Caffeine applied to the scalp can protect hair follicles from UV damage.

Hair follicle studies suggest that maintaining telomere length could help treat hair loss and graying, but it's uncertain if mouse results apply to humans.

Healthy scalp reduces hair loss by managing oxidative stress.

Aging changes skin cells, leading to different DNA methylation and gene activity, affecting cell metabolism and aging signs.

The research found that the gene activity in mouse skin stem cells changes significantly as they age.

The study mapped yak skin cells to understand hair growth better.

Collagen and TGF-β2 help maintain hair cell shape and youthfulness.

Palmitoyl tetrapeptide-20 may help reduce hair greying and increase melanin production.

Genes controlling hair growth and immune response are disrupted in male pattern baldness.

Hedgehog signaling helps keep hair follicle stem cells the same in both young and old human skin.

Blocking IL-17 signaling can delay skin aging and improve skin and hair health.

The document concludes that a new method has been developed to test anti-aging substances on human skin, showing that these substances can reduce skin aging signs.

The research found that blocking a gene called NEMO can potentially prevent harmful effects of aging at the cellular level.

Adipose-derived stem cells show potential for skin rejuvenation and wound healing but require more research to overcome challenges and ensure safety.

Testosterone can cause acne and male-pattern baldness, affects hair growth in men and women, and makes male skin more sensitive.

The study concludes that mutations in the AEBP1 gene can cause a form of Ehlers-Danlos syndrome and should be considered in diagnosis.

Fat-derived stem cells show promise for skin repair and reducing aging signs but need more research for consistent results.

Air pollution (PM10) increases skin inflammation and aging by reducing collagen and may trigger a repair response in skin cells.

Collagen XVII is important for skin aging and wound healing.

Genetic defects and UV radiation cause skin damage and aging.

Cadmium chloride pollution can cause skin disorders, speed up aging, and prevent hair growth.

Fat-derived stem cells may help treat skin aging and hair loss.

Fat-derived stem cells and their secretions show promise for treating skin aging and hair loss.

Aging skin is affected by inflammation, reduced stem cell function, and slower wound healing.