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All five hair fiber products improved appearance but didn't stick to completely bald areas.

Repeated hair dyeing significantly damages hair.

The document concludes that changes in eyelashes and eyelid skin can indicate various local and systemic diseases.

Yak belly hair has higher porosity and is less stiff than human hair, making it absorb dye better but less suitable as a direct substitute for hair dyeing.

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

Cosmetic treatments like bleaching and perming can greatly reduce opiate levels in hair, possibly leading to false-negative drug tests.

Beautiful hair is flexible and elastic due to its unique double-layered structure and can be enhanced with succinic acid treatment.

The study developed a method to analyze ancient hair proteins using very small samples.

K18® and Olaplex® both effectively repair bleached hair, improving its strength, smoothness, and overall health.

Plasma jet treatments can clean hair and might replace peroxide for hair care.

Hair analysis for drugs needs a better understanding of how drugs enter hair, considering factors like hair structure and pigmentation.

Infrared and Raman imaging can non-destructively analyze hair structure and help diagnose hair conditions.

The study found that the Marangoni effect causes the uneven wetting of surfactant-coated hair due to the surfactant moving into the water.

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

The study found that certain conditioning compounds can penetrate hair and potentially improve its resistance to damage.

Activated carbon fibers from Metaplexis japonica seed hair are highly effective for removing the dye methylene blue from water.

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

The study found that a polymer treatment changes the charge on hair surfaces, making bleached hair smoother and less porous.

Some oils can penetrate hair and reduce the stickiness between fibers, but mineral oil cannot.

Hair fibers have fractal patterns with properties related to the golden mean, which may affect their functionality.

Certain polymers can stick to hair and increase volume, working best at a pH of 7 to 9.

Adding 1% hair fibers to brake materials improves friction and wear, making them more effective.

A new method extracts red dyes from wool without damaging it, although it slightly weakens the wool.

Researchers developed a less damaging way to extract red dyes from wool using EDTA and DMF, preserving the fiber's strength for further analysis.

Concrete made from animal bones and human hair is stronger and more environmentally friendly than traditional concrete.

Pollution exposure speeds up hair damage.

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

Enzymes xylanase and pectinase clean wool and specialty hair fibers effectively without damage, offering an eco-friendly alternative to soap and hot water.

Scientists made glow-in-the-dark dots from human hair that can detect iron, prevent counterfeiting, and reveal fingerprints.

Hair feels different when touched and rubs together in various ways.