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Human hair varies widely and should be classified by curl type rather than race.

The document explains what healthy skin, nails, and hair look like on an ultrasound.

Loose anagen hair syndrome in children may improve with age, but treatment results vary.

Ruby laser hair removal significantly reduces hair density.

Rac1 is essential for proper hair structure and color.

Shampoo B, which uses water-soluble silicone, is better at detangling hair in wet conditions due to its two-layer conditioning film.

Cysteine strengthens hair, and glutamine fuels hair growth.

The document concludes that the hair cycle is a complex process involving growth, regression, and rest phases, regulated by various molecular signals.

Mouse hair follicle cells briefly grow during the early hair growth phase, showing that these cells are important for starting the hair cycle.

The document concludes that the hair cycle is a complex process involving growth, regression, and rest phases, regulated by various molecular signals.

Genetics and hormones cause hair loss; finasteride treats it safely.

The article concludes that advancements in hair cosmetics require dermatologists to stay informed about products and their potential risks, including allergies and higher risks for hairdressers.

The Trichoscan system was found to be inaccurate for measuring hair growth, needing better software to be useful.

Hair proteins have weak spots in their α-helical segments.

Hormones, nutrition, and seasonal changes regulate hair growth cycles, with androgens extending growth phases and factors like aging and malnutrition affecting hair loss and thinning.

The arrector pili muscle might play a role in hair loss and needs more research to understand its impact.

Researchers found that bulge cells from human hair can grow quickly in culture and have properties of hair follicle stem cells, which could be useful for skin treatments.

Researchers found a new gene, hacl-1, that is active in mouse hair follicles during hair growth and may be important for hair biology.

UV radiation and visible light can damage hair, but there are ways to protect it.

Removing external lipids from hair reduces moisture and increases strength, while removing internal lipids decreases water permeability.

Hair shaft dysplasias are abnormal hair conditions that can be inherited or acquired and may signal other health issues, with limited treatment options available.

Animal models are crucial for learning about hair loss and finding treatments.

The herbal cream was found to be a safe and effective alternative for hair growth, similar to minoxidil.

Different tests are used to see how hair care products affect hair, and choosing the right test is important for accurate results.

Curly hair breaks more easily, especially with chemical treatments, but simpler grooming reduces breakage.

Common types of non-scarring hair loss have various causes and treatments, but more effective solutions are needed.

Environmental and cosmetic factors, including heat, chemicals, and sun exposure, can cause hair loss and damage.

A mutation in the KRT71 gene causes a hair disorder by disrupting hair follicle structure and texture.

The conclusion is that a new method to measure hair shine was confirmed to match people's visual assessments.

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