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Hair amino acid levels can indicate metabolic disorders.

Hair relaxers are linked to reduced cystine levels and potential hair damage.

Black hair's diversity in patterns and textures is influenced by follicle shape and keratin, and it holds cultural, artistic, and mathematical significance.

Human hair varies widely and should be classified by curl type rather than race.

Avoid chemical and physical damage to protect hair.

16-MHA can restore the barrier and moisture of damaged hair, making it similar to undamaged hair.

Accurate clinical, histological, and genetic methods are key for understanding and treating hair disorders.

The study found no common cause for a girl's crystalline cataract and uncombable hair, suggesting their co-occurrence might be coincidental.

Different tests are used to see how hair care products affect hair, and choosing the right test is important for accurate results.

Genetics, stress, and health issues can cause early hair greying, which affects self-esteem, and there's no cure, only hair dye.

Uncombable hair syndrome causes frizzy hair and can affect the nervous system, eyes, and ears, often co-occurring with other hair, skin, nail, and teeth conditions, and is linked to three specific gene mutations.

Young female Australian fur seals are losing hair due to low tyrosine and zinc levels and high pollution exposure.

Hair can indicate early signs of metabolic disorders, with issues like protein deficiency stopping hair growth.

Lifestyle choices like stress, smoking, heavy drinking, sun exposure, and chemical hair treatments might speed up hair loss in people with androgenetic alopecia.

Chemical hair straightening can damage hair and health, needing safer alternatives and stricter regulations.

Body hairs can be used in forensic science and toxicology like scalp hair.

Understanding the genetics of rare inherited ichthyosis syndromes is key for better treatments and genetic counseling.

A new method accurately measures amino acids in treated hair, showing bleaching reduces amino acids while protein treatments increase them.

Amino acids in conditioners improve hair strength, hydration, and color retention.

The document concludes that cosmetics need biocompatible, eco-friendly ingredients due to aging populations and demand for effective products.

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

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

AP collagen peptides improve hair elasticity and gloss.

Korean women's hair thins, weakens, and greys with age, with mineral and sterol changes.

Changing disulfide bonds in human hair affects its melting behavior and thermal stability.

Human hair loss may have evolved to help increase brain size.

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

Lower pH straighteners change hair more but weaken it.

Reducing copper (II) ion levels in hair can decrease hair damage.

Keratin hydrogels from human hair show promise for tissue engineering and regenerative medicine.