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UV radiation damages hair by creating holes and peeling cuticle layers.

Mutant mice help researchers understand hair growth and related genetic factors.

Human hair keratin fibers have a detailed nano-scale structure that changes with different conditions.

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

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

Water quality affects mineral content in hair, and coconut oil can protect against damage.

The research found that people's hair proteins vary, especially by ethnicity and body part, which could help identify individuals in forensic science.

The research found that people's hair proteins vary by individual and body part, with some differences between ethnic groups, which could help in forensics.

Endo-HSE helps grow hair-like structures from human skin cells in the lab.

Rectangular black granules, solitary yellow dots, and mostly single-hair follicles suggest Loose Anagen Hair Syndrome.

The B2 genes are crucial for hair growth in rats.

The skin has multiple layers and cells, serves as a protective barrier, helps regulate temperature, enables sensation, affects appearance, and is involved in vitamin D synthesis.

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.

Nanoparticles around 600-700 nm can effectively enter and stay in hair follicles for days, which may help in delivering drugs to specific cells.

Hair gets thinner, grayer, and changes texture with age due to genetics, environment, and cellular changes, affecting the growth cycle.

The 3D structure of a key hair protein was modeled, revealing specific helical structures and stabilization features.

Some mutant mice have hair with abnormal cross-linking, mainly in the cuticle, not affecting other hair parts.

Human hair proteins vary by individual, body site, and ethnicity, useful for forensics.

Older people's hair cuticles get more easily damaged and lose protective oils, especially in their 40s and 50s.

Abnormal cuticle and hair shaft medulla cause hair loss in androgenetic alopecia; sonography helps diagnose and manage it.

Keratin's mechanical properties are influenced by hydrogen bonds and secondary structure, and can be improved with the SPD-2 peptide.

Eyelash curvature is linked to the thickness of the cuticle layer at the root.

Wool and hair fibers absorb moisture similarly due to their keratin structure, with the amount of non-crystalline areas affecting the moisture uptake.

Defective mink guard hairs have split tips and missing cuticle cells, causing a metallic sheen.

Surfactants damage hair, but sealing the cuticle can prevent this.

Hair fibers break by cuticle cell slipping, shape changing, cuticle fraying, and surface cracking when stretched under specific conditions.

Chemical treatments and daily stresses damage hair, especially the cuticle layer.

Henna dye improves hair cuticle and thickness but effects vary by hair type and health.

Skin structure complexity and variability are crucial for assessing skin toxicity in safety tests.

The method can identify minerals in hair from water, and using coconut oil or conditioner can prevent mineral buildup.