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

Hair analysis for drugs needs a better understanding of how drugs enter hair, considering factors like hair structure and pigmentation.

Permanent hair dye damages hair but it mostly recovers after 8 weeks; using certain hair care products can help repair it.

Human hair has a protective lipid layer that can be damaged by moisture and treatments, affecting hair growth and health.

TGase 3 helps build hair structure by forming strong bonds between proteins.

The lipid in human hair follicles acts as a barrier, similar to the skin's lipid layer.

Different hair cleaning methods caused varying levels of damage to the hair's outer layer.

Pollution exposure speeds up hair damage.

Monotreme hair structure and protein distribution are similar to other mammals, but their inner root sheath cornifies differently, suggesting a unique evolution from reptile skin.

A dark-haired Chinese girl had hair that looked banded under certain light but was normal under a microscope.

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

The 12-point scale is better for evaluating small changes in hair condition after using hair care products.

Involucrin helps strengthen the inner parts of human hair.

Keratinized wool cells still have some organelles like lysosomes and mitochondria.

Healthy scalp leads to better hair quality and less damage.

Gray hair has more continuous medullation and a higher medullary diameter than black hair.

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.

A small molecule can strengthen fine hair, making it more resistant and natural-feeling.

The study found unique microscopic features for hair or feather in five animal ingredients in Shenrongbian pill.

Microfluorometry effectively measures how much polymer coats and penetrates hair, useful for evaluating hair products.

Using natural polyphenol cross-linkers like tannic acid and green tea extract in perm treatments improves curling and protects hair.

Loose anagen syndrome causes easy hair shedding in children, often resolving on its own.

Hair care products used for 4 weeks made hair smoother.

The document concludes that Loose Anagen Hair Syndrome is a benign condition where hair is thin and easily pulled out, often improving with age.

The cornified cell envelope forms a protective barrier in skin and hair, using specific proteins and lipids to maintain effectiveness.

Rare changes in the KRT82 gene are linked to a higher risk of Alopecia Areata.

A mutation in the KRT82 gene is significantly associated with Alopecia Areata.

Chemical treatments change hair surface properties, making it more hydrophilic and able to bind conditioners.

Pseudofolliculitis barbae is a chronic skin condition affecting mainly African American and Hispanic individuals, caused by shaving tightly curled hair, and managed by prevention and treatment but not curable.