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Melasma is a skin condition linked to female hormones, genetics, UV exposure, and certain medications, but not to pituitary, adrenal, or thyroid diseases.

Darker skin provides more protection against UV damage and cancer.

Environmental factors like smoking, UV exposure, and poor diet contribute to hair loss and graying, and lifestyle changes can help manage it.

UV radiation causes significant protein loss and color changes in hair, especially blond hair.

Hemoglobin α acts as an antioxidant in skin cells, especially protecting hair follicle stem cells from UV damage.

The study found that skin inflammation and immune response pathways are activated in Solar Urticaria patients after UV exposure, unlike in healthy people.

Caffeine in cosmetics has antioxidant effects, protects against UV, reduces cellulite, and stimulates hair growth.

Genetic defects and UV radiation cause skin damage and aging.

Chemical treatments damage hair more than UV exposure, making it thinner and less flexible.

The document concludes that skin aging in women can be caused by UV exposure and hormonal changes, and treatments like hormone replacement therapy and various skin therapies can help.

Researchers found new hair and nail genes, how hair reacts to UV, differences in white and pigmented hair growth, nerve changes in alopecia, treatments for baldness and alopecia, a toenail condition linked to a genetic disorder, and that nail fungus is more common in people with psoriasis.

Cosmetics improve skin and hair health, protect from UV damage, and boost mood and confidence.

Long-term use of seizure medications can disrupt calcium metabolism, but this can be treated with vitamin D or UV light and does not affect seizure control.

BMAL1 controls skin cell growth and UV damage risk, peaking at night.

Caffeic acid protects human scalp cells from UV damage.

Combining hair transplantation with microneedling or laser and UV light may help treat tough vitiligo on hands and feet, with microneedling being affordable and easy to learn.

The new nanocomposite films are stronger, protect against UV, speed up wound healing, and are antibacterial without being toxic.

New wig coating technique makes them more durable, UV resistant, and less static.

Increasing type 17 collagen reduces aging signs in skin cells caused by UV light.

Sun exposure after laser hair removal can cause skin darkening, which is hard to treat and requires avoiding UV light.

The research showed how melanocytes develop, move, and respond to UV light, and their stem cells' role in hair color and skin cancer risk.

Some moles can disappear naturally, maintenance therapy for Stage 1 mycosis fungoides may not be necessary, allergic skin reactions in children are rising, weekly methotrexate for psoriasis is more effective than daily, long-term finasteride use improves hair growth with few side effects, and petrolatum improves UV therapy for psoriasis.

Trichoscopy is a useful tool for diagnosing different hair and scalp diseases by their unique visual features.

Caffeine in cosmetics may reduce cellulite, protect skin, and stimulate hair growth, but more research is needed on its use and effects.

Melasma is now considered a skin aging disorder caused by sun exposure in people with a genetic tendency, which impacts treatment and prevention approaches.

Vitamin D is important for skin health and may affect conditions like psoriasis and hair loss, but more research is needed to understand its role fully.

Human dermal fibroblasts are the main cells targeted by a virus that can cause a deadly skin cancer, and a certain inhibitor can effectively block this infection.

The skin's internal clock affects healing, cancer risk, aging, immunity, and hair growth, and disruptions can harm skin health.

Liposomes could improve how skin care products work but are costly and not very stable.

Hair ages due to genetics and environmental factors, leading to graying and thinning, with treatments available for some conditions.