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Hair color affects light reflection, with black hair having higher cuticle angles and lighter hair showing less specular reflection.

An unhealthy scalp can damage new hair, but using ZPT shampoo can improve hair health.

The study found nine new hair protein genes in human hair follicles.

Friedreich's ataxia causes thin, weak hair with surface damage and cavities.

Mammal hairs have different internal structures.

Donkey and horse hair have different microscopic structures, which can help tell them apart.

KRTAP10 proteins help form the hair shaft's tough outer layer by interacting with specific hair keratins.

Chemical stressors damage hair structure but the skin's outer layer protects living cells.

Disrupting the Sox21 gene in mice causes hair loss and regrowth cycles.

SELP::KP improves hair strength, elasticity, and health, making it a promising hair cosmetic.

Asian hair is generally straight and thick, with unique disorders and properties, and more research is needed to understand it fully.

Advancements in hair keratin research could lead to better hair health treatments.

Two mouse mutants have defective hair cuticle cross-linking.

The evolution of mammal body hair remains a mystery.

NaOH treatment improves hair strength and suitability for textiles.

The treatment effectively repairs and strengthens damaged hair by restoring natural lipids.

Repeated hair dyeing significantly damages hair.

Pollution exposure speeds up hair damage.

The cuticle significantly contributes to hair stiffness, making up about 60% of the total bending stress.

Heating human hair creates hollow microtubes with smooth surfaces.

The conclusion is that substances can penetrate hair fibers through multiple pathways, including both the cell membrane complex and the non-keratinous parts.

Pubic hair has a thicker, more protective outer layer than scalp hair, possibly due to evolution.

Neonate scalp hair is thinner, lacks a medulla, and has smaller follicles compared to adult hair.

The 16th-century mummy's hair was well-preserved due to a calcium coating.

Hair treatments can damage hair by changing its chemical content.

Keratin essence protects and improves damaged hair.

Applying conditioner in the middle of a perm process reduces hair damage the most.

Human hair strength and health are linked to sulfur compounds that can be reduced by stress but improved with sulfur supplements.

Hair keratins are mainly on macrofibrils in the cortex and in the endocuticle in the cuticle.

Polymeric pretreatments can significantly reduce hair breakage and damage from hot flat irons.