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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.

Disulfide bonds are crucial for hair structure during keratinization.

Hair proteins have weak spots in their α-helical segments.

Giving high-quality protein or methionine supplements helps improve hair growth in Angora goats and, to a lesser extent, in Cashmere goats.

Bleaching hair removes its protective top layer and exposes more hydrophilic groups, changing its chemical surface and affecting how it interacts with products.

Hair and follicle keratins differ in structure and expression, especially in cysteine content.

Mice with CBS deficiency are healthier on a low-methionine diet.

A new pair of mouse keratins, 65 kD and 48 kD, are found in specific skin areas and are linked to a unique skin differentiation type.

The study found that variations in hair protein genes are likely due to evolutionary deletions or duplications.

Two specific genes are more active during hair growth in mice.

Chemical treatments like dyeing, perming, and bleaching damage hair by altering amino acids and lipids.

Sunlight exposure ages hair, making it brittle, stiff, and dry.

Thioglycolate lotions are the most popular method for permanent waving and hair straightening.

Eating a balanced diet with specific nutrients is important for menopausal women to manage hair loss.

Hair follicles have unique proteins that vary by species and are influenced by nutrition.

MC-DNA vector-based gene therapy can temporarily treat CBS deficiency in mice.

Changing the diet of mice lacking the enzyme CBS can affect symptoms related to the genetic condition.

Hair coloring increases copper and calcium uptake, damaging hair and reducing shine.

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

Oxidizing agents break down keratin in wool and hair, causing swelling and increased solubility.

Lack of cystatin M/E causes thin hair and dry skin.

Sheep hair follicle transglutaminases are calcium-dependent.

Swimming in pools with high copper can turn hair green, especially if hair is damaged.

Researchers found 617 genes that behave differently in cashmere goat hair follicles, which could help understand hair growth.

BMI1 is essential for preventing hair greying and maintaining hair color.

Monoethanolamine-based hair colorants can cause more damage to hair than ammonia-based ones.

Human hair proteins have similar cysteine and glycine levels to skin proteins.

Chemical treatments on bleached black hair change its internal structure by breaking and reforming bonds, and treatments with hydrolyzed eggwhite protein help repair it.

Grafted human scalp samples on mice can produce human hair, useful for studying hair genetics.

Sulfur-containing radioprotectors can protect hair from X-ray damage if given before exposure but worsen damage if given after.