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Bleaching hair increases cysteic acid levels in a predictable way.

Different techniques measure hair properties to ensure cosmetic products work.

Different women's hair and skin glands respond to hormones in varied ways, which can cause unwanted hair growth even with normal hormone levels, and more research is needed to treat this effectively.

Hair growth is controlled by specific gene clusters and proteins, and cysteine affects hair gene expression in sheep.

White hair grows thicker and faster than black hair due to higher activity of growth-related genes and proteins.

Human hair follicle stem cells show signs of low oxygen levels, which may be important for hair growth and preventing baldness.

Bleaching hair causes significant damage by breaking down proteins and fatty acids.

Heat damages hair, with Asian hair losing more protein than Caucasian hair.

The study found genetic differences related to hair development that may explain hair loss in a patient with Trichorhinophalangeal syndrome type I.

Different sizes of keratin peptides can strengthen hair, with smaller ones possibly increasing volume and larger ones repairing damage.

Human hair protein modifications could potentially indicate heart disease risk.

Mongolian gerbils heal wounds differently than mice, with unique protein levels and gene expression that affect skin repair.

The document concludes that cosmetics need biocompatible, eco-friendly ingredients due to aging populations and demand for effective products.

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

Hair straightening can damage hair and pose health risks, including exposure to carcinogens and hair loss.

Chemical treatments on bleached black hair change its internal structure by breaking and reforming bonds, and treatments with hydrolyzed eggwhite protein help repair it.

Genetically modified sheep with more β-catenin grew more wool without changing the wool's length or thickness.

Hair and wool strength is affected by the number and type of bonds in their protein structures, with hair having more protein aggregates than wool.

Scientists created three types of structures to help regrow hair follicles, and all showed promising results for hair regeneration.

The document concludes that hair loss is influenced by genetics and other factors, and while treatments like finasteride can help, they have limitations and side effects.

Immuno-cosmeceuticals from chicken egg yolk can effectively repair and improve damaged hair.

KAP-depleted hair causes less immune response and is more biocompatible for implants.

Vitamin A deficiency changes cattle hair structure, while pregnancy may improve it, suggesting hair can indicate cattle health.

George Ernest Rogers was a notable scientist who made important discoveries about hair and wool proteins.

Cosmetic procedures can harm hair, but damage can be minimized with knowledge and care; however, once hair is damaged, it cannot be reliably repaired.

Hair and nails are skin parts that develop early and serve protective and functional roles.

Researchers developed a 3D model of human hair follicle cells that can help understand hair growth and test new hair loss treatments.

Permanent hair dye damages hair but it mostly recovers after 8 weeks; using certain hair care products can help repair it.

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.

Thiosulfate may help hair grow faster in mice and works well with a common hair growth treatment.