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Adding human hair to sand improves its strength when dry and maintains strength when wet.

Cleanroom workers in a battery factory have worse skin and eye conditions due to the very dry environment.

Acidic sandy clay damages archaeological hair the most, while dry conditions preserve but make it brittle; silicone oil can help keep the hair flexible.

Curly hair's strength and flexibility vary with moisture and temperature.

Drying hair with a microfiber towel better maintains hair strength and structure than using a cotton towel or blow-drier.

Animal hair fibers like wool and mohair are strong when dry, but vicuna fibers are very brittle.

Disulfide bonds in keratin fibers break more easily under stress, especially when wet, affecting fiber strength.

Hair's structure and properties change with pH; acidic pH maintains strength and less swelling, while alkaline pH increases water content and swelling.

Wool and hair fibers absorb moisture similarly due to their keratin structure, with the amount of non-crystalline areas affecting the moisture uptake.

Disulfide bonds are crucial for hair's strength, especially when wet.

Shampoo B, which uses water-soluble silicone, is better at detangling hair in wet conditions due to its two-layer conditioning film.

Ethanol spreads well on hair at low humidity but less so at higher humidity due to water condensation.

Hair health is influenced by genetics, aging, and environmental factors, with proper care needed to maintain it.

Pigs in farrowing crates and loose-housing systems showed no difference in chronic stress levels as measured by hair cortisol.

Hair fibers interact through classical forces, which are influenced by treatments and products, important for hair care and other applications.

The 3D structure of a key hair protein was modeled, revealing specific helical structures and stabilization features.

UV radiation and visible light can damage hair, but there are ways to protect it.

The conclusion is that a new method to measure hair shine was confirmed to match people's visual assessments.

Different hair types from various ethnic groups affect hair shine due to characteristics like thickness and shape.

Scientists developed a new method to deliver alopecia treatment directly to hair follicles, which could be a promising treatment for hair loss and other hair diseases.

Human liver cells stick to hair protein materials mainly through the liver's asialoglycoprotein receptor.

Changes in keratin make hair follicles stiffer.

Future research on ectodysplasin should explore its role in diseases, stem cells, and evolution, and continue developing treatments for genetic disorders like hypohidrotic ectodermal dysplasia.

Coriander seed oil is safe for healthy adults at up to 600 mg per day.

Thioglycolic acid and L-cysteine change hair structure differently during perms, affecting hair strength and curling efficiency.

Heat damages hair, with Asian hair losing more protein than Caucasian hair.

Changing the C-ring structure in certain compounds can make them better at blocking a specific human enzyme.

Permanent hair dyes use chemicals that react with hydrogen peroxide to create color.

Mummy hair from the Taklamakan desert has calcium and phosphorus inside.

Different fields of expertise must work together to better understand hair growth and create effective hair loss treatments.