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African American women report more hair issues and use different hair care practices than Caucasian women, and have different hair and scalp characteristics.

Hair sunscreens are important for maintaining hair's cosmetic value.

Pollution exposure speeds up hair damage.

Pulsed-intense light can significantly reduce hair, with effectiveness depending on treatment number and timing, and has mild side effects.

Hair care products don't cause hair loss if used correctly.

Detailed patient history and physical exams are crucial for diagnosing hair loss.

Human hair has more unsaturated fats inside than on the surface, and certain lipids may help bind the outer and inner layers together.

Surface and internal treatments can help prevent hair lipid loss during washing.

Using polyethylenimine-DNA to deliver the hTERT gene can stimulate hair growth and may be useful in treating hair loss, but there could be potential cancer risks.

Reducing copper (II) ion levels in hair can decrease hair damage.

Hair gets thinner and grayer with age, and density decreases more in men on top and in women on top and back.

Most patients were satisfied with diode laser hair removal and experienced no long-term side effects.

Mushroom-based scaffolds help heal skin wounds and regrow hair.

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

Coloring white hair before IPL treatment effectively helps remove it.

The study found that a polymer treatment changes the charge on hair surfaces, making bleached hair smoother and less porous.

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

Hair texture changes with age due to varying levels of lipids.

Outside factors like grooming, chemicals, and the environment can damage hair and cause disorders.

Androgens can cause hair growth in some areas but hair loss on the scalp.

Hair color and length affect metabolite profiles in hair, so they should be considered in hair analysis.

Hair's structure and properties change with pH; acidic pH maintains strength and less swelling, while alkaline pH increases water content and swelling.

The document explains different hair loss types and treatments, emphasizing diagnosis through examination and tests, and specific treatments for each condition.

A new compound, BOI, can help hair grow by changing hair cycle phases and increasing certain cell contents.

Androgens can both increase body hair and cause scalp hair loss.

Hydrogenated palm oil repairs and conditions damaged hair by preventing swelling.

The study developed a method to analyze ancient hair proteins using very small samples.

Cooling the scalp may prevent hair loss from chemotherapy, hair often grows back after treatment, and nail issues usually improve after stopping the drug.

Stress may affect hair growth by influencing hair follicle development and could contribute to hair loss.

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.