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A tough membrane between the outer and inner layers of human hair protects it from damage.

Keratin-associated proteins are part of the developing hair fiber cuticle.

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

Researchers extracted tiny keratin filaments from human hair by unzipping its outer layer.

The research found a way to measure hair surface changes by analyzing how light reflects off of it, and determined hair cuticle angles vary by hair length and color.

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

The conclusion is that new methods for isolating hair cuticle cells and removing the cuticle layer are effective and convenient.

Hair dye can damage dog hair and cause health issues.

Researchers found genes for cysteine-rich proteins that form the protective layer of hair in humans and sheep.

The hair cuticle is made of tough proteins that protect the hair, but more research is needed to fully understand its structure.

The hair cuticle acts as a barrier against fungal infection, which occurs only deep within the hair follicle.

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

AFM helps study hair surfaces for dermatology, cosmetics, and forensics.

Luliconazole is more effective than ketoconazole at repairing damaged hair cuticles.

Chemical treatments severely damage hair cuticles, especially in previously treated hair.

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.

Certain natural extracts can promote hair regrowth.

Oxidation changes human hair by breaking down fats and forming new acidic groups, affecting how it interacts with conditioners and cosmetics.

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

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.

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

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.