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

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

Using blood-based implants improves skin healing and reduces scarring.

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

Inhalation therapy may repair and protect elastin in the lungs of COPD patients.

Polyquaternium 7® builds up on hair, improving its look and feel, and AFM is good for measuring these changes.

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

Hair breaks differently when wet or dry and is affected by its condition and treatments like perms and bleaching.

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

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

A new method using poly(ethylene imine) improves hair dyeing at lower temperatures with better color retention.

Chemical treatments can change the scale heights of wool and cashmere fibers, affecting their identification.

Hair strength is similar across different scalp areas, and not affected by age, gender, or hair thickness.

Colored hair-thickening fibers can help hide hair loss in some people with Epidermolysis Bullosa but may cause scalp irritation.

PEI diffuses into hair at a constant rate, and urea speeds up this process.

Urea helps hair dye penetrate better and last longer.

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

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

Researchers created a potential skin substitute using a biodegradable mat that supports skin cell growth and layer formation.

The effectiveness of reducing agents on hair fibers depends on their electrode potentials.

Different oils penetrate hair differently; monounsaturated oils like olive oil penetrate better than polyunsaturated oils.

Fiber implants effectively treat permanent hair loss with over 85% success and minimal complications.

Hair increases in size when it absorbs water, and treatments like bleaching affect how much water it can take in.

The document describes a method for preparing hair for microscopy by embedding it in plastic, cutting it, and storing it cold before imaging.

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

Conditioners with PQ-10 soften the flat part of hair cuticles but harden the edges.

The new test shows how hair treatments affect hair's bending stiffness by swinging a pendulum through hair fibers.

Microfluorometry effectively measures how much polymer coats and penetrates hair, useful for evaluating hair products.

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

Changing disulfide bonds in human hair affects its melting behavior and thermal stability.