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Certain small molecules and polymers can change hair's physical properties and how it feels by affecting the bonds within the hair.

Pectin biosynthesis is essential for the growth of cotton fibers and Arabidopsis root hairs.

White hair has less lipid content and absorbs water differently than brown hair.

Modern wound dressings like hydrocolloids, alginates, and hydrogels improve healing and are cost-effective.

Genomic research can help improve the quality and production of natural fibers in animals.

Hair and wool strength is affected by the number and type of bonds in their protein structures, with hair having more protein aggregates than wool.

Skin aging is largely due to differences in stiffness and elasticity between skin layers, leading to wrinkles.

Crossbreeding improves goat fiber quality, and specific genes affect hair traits and color.

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

Vitamin A deficiency changes cattle hair structure, while pregnancy may improve it, suggesting hair can indicate cattle health.

Direct heat perms cause more damage to hair than softening heat perms.

Water and fatty acids affect hair's surface differently based on hair damage, and models can help understand hair-cosmetic interactions.

Different proteins are linked to the varying thickness of sheep and goat hair types.

Different versions of the KRTAP6-2 gene in goats can lead to thinner cashmere fibers.

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

Washing permed hair after using thioglycolic acid helps reform strong bonds, making hair stronger.

Hair and wool have complex microscopic structures with microfibrils and varying cystine content.

Melatonin improves cashmere goat hair growth and quality by increasing antioxidants and reducing cell death.

Removing external lipids from hair reduces moisture and increases strength, while removing internal lipids decreases water permeability.

Short daily photoperiods improve cashmere production in Inner Mongolia white cashmere goats.

Cosmetic procedures can harm hair, but damage can be minimized with knowledge and care; however, once hair is damaged, it cannot be reliably repaired.

Polydopamine is a safe, effective, and permanent hair dye that turns gray hair black in one hour.

Disulfide bonds make keratin in hair stronger and tougher.

Hair and wool have diverse keratins and keratin-associated proteins.

Using laccase to add poly(tyrosine) to wool makes it less likely to shrink and stronger.

Plant-based compounds can improve wound dressings and skin medication delivery.

Papain and bisulfite break down human hair by dissolving parts of it.

A specific genetic deletion in goats affects cashmere yield and thickness.

Certain miRNAs may play a role in sheep hair follicle development, which could help improve wool production.