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UV radiation damages hair similar to bleaching, but double bleaching causes more severe protein degradation.

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

Dlx3 is essential for hair growth and regeneration.

β-Catenin signaling is involved in brain cell growth after injury and could be a therapy target.

Hair differentiation starts earlier than thought, involving multiple type-II keratins.

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

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.

Hair ages as the cuticle wears down, especially beyond 1 meter from the root, affecting its strength and shine.

mHa2 and mHa3 keratins have different structures and roles in mouse hair and tongue tissues.

Moisture content significantly affects how human hair breaks.

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

Bleaching hair causes severe structural and chemical damage, including protein loss and oxidation.

Melanin in black hair protects it from sun damage better than light-brown hair.

Cuticle damage doesn't affect hair's tensile strength; the cortex is responsible for it.

A rabbit gene important for hair development was identified and detailed.

Hair malformations may occur due to timing issues in hair development.

The study found that thioglycolic acid breaks down hair bonds more consistently than l-cysteine, which is less damaging to hair.

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

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

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

OCT can identify hair structures, but chemical treatments can damage them.

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

Hair in mammals likely evolved from glandular structures, not scales.

Hair lipids do not protect against humidity.

The cell membrane complex in mammalian hair has three distinct types with different structures and chemical properties.

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

Keratin 26 affects cashmere goat hair growth and is influenced by various treatments.

White hair has less lipid content and absorbs water differently than brown hair.

Hydrolyzed wheat proteins penetrate all hair types effectively.