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Adding human hair to clayey soil makes it stronger, even after freeze-thaw cycles, and is eco-friendly and cheap.

Different hair fiber brands have unique electrostatic and dielectric properties.

Repeated hair dyeing significantly damages hair.

Researchers developed a new method to identify animal hair in textiles, which is effective for various fibers and more reliable than previous methods.

Dye enters hair at the edges of cuticle cells and penetrates more from water than alcohol-based solutions.

Light scatters differently from elliptical hair fibers than from circular ones, and a new model better predicts this behavior, especially for shiny highlights.

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

Merino wool fibers change shape with moisture, while human hair shape stays the same.

Curly and straight hair differ in how their internal fibers are arranged.

Stretching-setting treatment works for wool and human hair using specific equipment and methods.

The industry should promote pure luxury hair fibers, improve technology, and diversify products to support growers and ensure sustainable use.

South American camelids should be sheared early, fleece type affects fiber quality, and the S/P follicle ratio doesn't distinguish between Bolivian llama genotypes.

Anatolian native goat down-hair is similar to cashmere and can be used for high-quality textiles.

The model shows that factors like follicle shape and stiffness are key for hair growth and anchoring.

Small amounts of DNA can be found in the hair shaft, especially near the root, but it decreases with hair treatments and washing.

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

New methods may change hair color and shape from the root, revolutionizing hair styling.

The research found a way to measure hair surface changes by analyzing how light reflects off of it, and determined hair cuticle angles vary by hair length and color.

Human hair structure varies by ethnicity, and certain treatments can improve hair condition and appearance.

Twisting hair weakens it, but strength can be recovered at low twist levels.

Adding human and horse hair fibers to concrete can increase its strength.

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

Sublingual minoxidil increases hair thickness in men with hair loss.

The document concludes that understanding hair's composition and the effects of treatments can lead to better hair care products.

Laser treatment can inhibit hair growth and different hair colors reach different temperatures when lasered.

Bleaching and UV exposure significantly damage hair.

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

A special coating was made for artificial hair fibers that can slowly release silver ions for up to 56 days, providing long-term protection against bacteria and inflammation.

Researchers developed a method to identify and measure different animal hair fibers in textiles, successfully distinguishing materials like cashmere from cheaper fibers.

Rabbit hair fibers are similar to wool and have a hollow center like feathers.