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Glyoxylic acid straighteners cause more protein loss but have similar hair strength effects as traditional alkaline straighteners.

Dye enters hair at the edges of cuticle cells and penetrates more from water than alcohol-based solutions.

Human hair has a new region with ordered filaments and the cuticle contains β-keratin sheets.

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

Human hair has different protein structures in its cuticle and cortex.

Hair follicle cells become four types: medulla, cortex, cuticle, and inner root sheath.

Sunlight damages hair, causing cuticle loss, protein changes, and discoloration.

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

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

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

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

Perming and bleaching damage hair differently, with bleached hair having more cysteic acid in the cuticle.

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

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

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

Two mouse mutants have defective hair cuticle cross-linking.

Inhibiting ALOX12 can help hair cuticle maturation by increasing S100A3 citrullination.

High-resolution x-ray images showed three main structures in human hair: medulla, cortex, and cuticle.

Researchers developed a new model for more realistic computer graphics rendering of hair by considering how light scatters on hair fibers.

Human hair's strength and flexibility vary by ethnicity, damage, and treatment.

Researchers developed a new model for more realistic computer graphics of hair by considering how light scatters on hair fibers.

AFM helped show how hair changes under tension and the effects of damage and conditioner.

Papain and bisulfite break down human hair by dissolving parts of it.

Chemical hair straightening changes hair proteins and mostly fixes broken bonds.

Human hair's ability to get wet is complex and can change with treatments, damage, and environment.

Shampoo pH can affect hair health, with alkaline shampoos potentially causing damage and acidic shampoos reducing frizz.

Permanent waving weakens hair by altering its protein structure.

Infrared and Raman imaging can non-destructively analyze hair structure and help diagnose hair conditions.

Growing hair follicles have high mitochondrial activity and ROS in specific regions, aiding hair formation.

The research found two types of calcium in human hair, one that varies among individuals and another that is consistent across people.