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

The p53 protein has complex, sometimes contradictory functions, including tumor suppression and promoting cell survival.

Different oil products cause varying levels of skin irritation in mice, which could potentially lead to tumors.

The document suggests that activating autophagy might help with regeneration by removing old and damaged cells.

AHCC reduces hair loss and liver injury caused by chemotherapy in rodents.

Taxol damages hair growth cells, causing hair loss.

Linoleic acid (Vitamin F) can help protect against the harmful effects of acrylamide.

Pumpkin seed oil promotes hair growth and improves hair texture without harmful effects.

Camellia seed cake extract may help hair growth by blocking the hair loss effects of a hormone called DHT.

The new lab-grown skin model is good for testing sunscreen's protection against DNA damage from UV light.

Using protein degradation to fight cancer drug resistance shows promise but needs more precise targeting and fewer side effects.

Activating autophagy in dogs with certain diseases improves their skin and hair.

Activating the Wnt/β-catenin pathway could lead to new hair loss treatments.

Environmental factors, hormones, nutrition, and stress all significantly affect skin health and aging.

Damaging mitochondrial DNA in mice speeds up aging due to increased reactive oxygen species, not through the p53/p21 pathway.

Cell aging can be both good and bad for tissue repair.

Juniperus plants contain compounds with potential for developing various medical treatments.

Increasing PBX1 reduces aging and cell death in hair follicle stem cells by boosting SIRT1 and lowering PARP1 activity.

Dermatologists need to understand hair products to treat hair and scalp issues better.

Omeprazole effectively treats severe acid reflux in children for short-term use, but long-term safety needs more research.

The document concludes that for hair and feather growth, it's better to target the environment around stem cells than the cells themselves.

Brain hormones significantly affect hair color and could potentially be used to prevent or reverse grey hair.

Plant-based ingredients are effective and safe for modern skincare products.

Hibiscus rosa-sinensis may help treat various health issues and promote hair growth, but more research is needed for safety.

Topical contact sensitizers can treat certain skin conditions but are rarely used in the U.K.

Coriander seed oil is safe for healthy adults at up to 600 mg per day.

The conclusion is that there is a high demand for new contraceptives that provide both pregnancy prevention and protection against STIs, along with additional health benefits.

Active oxygen species might be involved in skin tumor growth, but their exact role is unclear.

The document concludes that treating androgen excess needs patience, managing expectations is important, and many drugs used are not officially approved, suggesting cosmetic options for mild cases.

RT1640 treatment reverses gray hair and promotes hair growth in mice.