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UVB radiation changes the chemical makeup and dries out human hair but doesn't alter its appearance or texture.

Pharmacy-sold shampoos tend to have fewer allergens compared to those sold in other stores.

Disrupting Acvr1b in mice causes severe hair loss and thicker skin.

Chemical hair straightening can damage hair and health, needing safer alternatives and stricter regulations.

Biopolymers are increasingly used in cosmetics for their non-toxicity and skin benefits, with future biotech advancements likely to expand their applications.

Fibromodulin might help reduce scarring if increased in adult wounds like in fetal skin that heals without scars.

Oxidative stress is likely important in causing telogen effluvium, and antioxidants might help treat it.

Botulinum and tetanus neurotoxins are better understood now, with updated information on their effects and treatment.

Fetal wound healing changes with development, affecting inflammation and collagen, which may influence scarring.

Body hairs can be used in forensic science and toxicology like scalp hair.

Yak belly hair has higher porosity and is less stiff than human hair, making it absorb dye better but less suitable as a direct substitute for hair dyeing.

Effective hirsutism management requires identifying the cause, combining new and traditional treatments, and setting realistic expectations for patients.

Alopecia in dogs is often caused by mange, flea and tick infestations, and nutritional deficiencies, especially in males and young dogs.

Herbal depilatories are safer and cause fewer side effects than chemical ones for hair removal.

Keratin hydrogels from human hair show promise for tissue engineering and regenerative medicine.

Scientists developed a new method to deliver alopecia treatment directly to hair follicles, which could be a promising treatment for hair loss and other hair diseases.

Human hair keratins can self-assemble and support cell growth, useful for biomedical applications.

Products should be called 'sperm-safe' only after thorough, well-designed tests.

Some plants may help with hair growth and have fewer side effects than synthetic drugs, but more research is needed to confirm their effectiveness.

Different oils affect hair flexibility and strength, with their impact varying on whether hair is virgin or bleached.

Nano-sized plant-based chemicals could improve cervical cancer treatment by being more effective and causing fewer side effects than current methods.

Herbal ingredients like aloe vera and hibiscus can help with hair problems like hair loss and dandruff.

Scientists successfully created mouse hair proteins in the lab, which are stable and similar to natural hair.

Up to 50% of scalp hair can be lost before it appears thin, and treatment is only needed for hair loss caused by diseases or deficiencies.

The document concludes that there are still unknowns about the effectiveness, risks, and detection of performance-enhancing drugs, and doping remains a challenge.

A substance called Vascular Endothelial Growth Factor can protect certain hair follicle stem cells from damage caused by androgens, suggesting a new possible treatment for hair loss.

The research found that postmortem root bands in hair are likely caused by the breakdown of a specific part of the hair's inner structure after death.

Herbal medications might be safer and more effective for hair loss than synthetic treatments.

Climate-related nutritional stress may cause hair loss in juvenile male Guadalupe fur seals.

Researchers found markers that can tell if hair has been bleached, which could improve hair test accuracy.