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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.

μ-Crystallin may help hair growth by affecting thyroid hormone levels in mouse hair follicles.

The G60S Connexin43 mutation causes hair growth issues and poor hair quality in mice, similar to human ODDD patients.

Chemical and physical treatments like bleaching, dyeing, and UV radiation damage both Caucasian and Afro-ethnic hair.

Corkscrew and cigarette-ash-shaped hairs in tinea capitis are caused by internal hair degradation and external resistance.

Frequent blow-drying causes cracks and breakage in hair cuticles.

Curly hair breaks due to mechanical damage and environmental factors, not chemical makeup, and needs ongoing care to prevent breakage.

c-Myc, Max, and Bin1 help hair follicle cells mature and die.

UV radiation significantly damages hair, especially with humidity, making it more vulnerable to further damage.

Small amounts of DNA can be found in the hair shaft, especially near the root, but it decreases with hair treatments and washing.

Frequent hairdryer use may worsen hair fragility in people with Pili Annulati.

Hair increases in size when it absorbs water, and treatments like bleaching affect how much water it can take in.

Alkaline hair relaxers damage hair, but cationic and non-ionic polymers can help reduce this damage.

The document explains how hair is studied in forensics to identify its source and its role in criminal investigations.

Heating human hair creates hollow microtubes with smooth surfaces.

Two patients with the same genetic mutation had both blistering skin and easily pulled out hair.

Hair analysis can detect drug use but is costly and interpretation is complex.

Aspartic acid at 0.75% makes perms more effective and less damaging to hair.

Red fox, golden jackal, and gray wolf hairs have similar features but differ in length, thickness, and inner structure.

A Thai boy was diagnosed with a rare hair disorder causing hair thinning and shedding.

Hair care products mainly work on the hair's surface and need professional guidance for use.

Hematin in shampoo helps repair and straighten damaged hair.

Hair fibers degrade and change color in very basic water.

Hair treatments and dehydration affect hair's lipid and protein behavior, influencing its flexibility and appearance.

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

Ceramide-based essence cream improves damaged hair.

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

LAIC cream can improve acne by making skin thinner and softer.

CDPDFM can improve acne symptoms in rabbit ears.