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The wigs made from human hair and polypropylene were mostly well-tolerated and durable in rabbits, suggesting they could be a new option for people with extensive hair loss.

Hair straightening can damage hair and pose health risks, including exposure to carcinogens and hair loss.

Pili torti is a rare condition where hair is twisted and breaks easily, often linked to genetic disorders or other health issues.

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

Treatments improved hair surface and scale structure but didn't increase certain bonds in the hair cortex.

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

A new hair treatment using a natural polyphenol complex improves hair strength, reduces static, and protects against UV damage.

Melanin density affects hair color, and this method can help in cosmetic assessments and diagnosing hair diseases.

The torsional method effectively evaluates hair damage and the performance of hair care ingredients.

Microfibrils are key for permanent waves, and hydrolyzed keratin improves wave formation and hair condition.

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

Teratoma hair is similar to scalp hair but has a rougher surface and lower adhesive force.

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

Repeated dyeing and shampooing cause hair color loss and damage.

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

Modified keratin binds better to hair, especially bleached hair.

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

Hair dye can damage dog hair and cause health issues.

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

Polymethylene wax in hair relaxers makes hair smooth and shiny with less damage.

Hair damage increases significantly with higher temperatures and longer heating times.

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

Human hair absorbs calcium and magnesium from tap water, affecting its structure and styling properties.

Understanding hair surface properties is key for effective hair care products.

AMPD is a better and less damaging alternative to ammonium hydroxide for hair bleaching.

A 6-year-old girl's inability to grow her hair long was due to Loose Anagen Hair Syndrome, which causes hair to shed easily and may improve with age.

X-ray microscopy can non-invasively show hair structure changes after treatments, but it's less detailed than TEM and needs improvement.

Scientists discovered a unique hair protein, KAP24.1, with a special structure, found only in the upper part of hair cuticles.

The hair's outermost surface has multiple layers of lipids and proteins.

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