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

Berry extracts improve fabric strength and flexibility, making it suitable for medical and cosmetic uses.

The ammonia-free hair dye is safe and improves hair shine, color, moisture, porosity, and combability.

Hematin in shampoo helps repair and straighten damaged hair.

Different tests are used to see how hair care products affect hair, and choosing the right test is important for accurate results.

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

Thermal protectants help reduce hair damage from heat styling.

Thermal protectants help reduce hair damage from heat styling.

The new hydrogel dressing improves wound healing with strong antibacterial effects and better mechanical strength.

Functionalized silicones improve hair appearance, combing, and manageability.

Shampoo coacervates can cause scalp irritation due to released surfactants.

New wig coating technique makes them more durable, UV resistant, and less static.

Hair loss significantly affects quality of life, wet combing is better than visual inspection for finding head lice, many with oral lichen planus have allergies, and wet wraps with steroids quickly improve itchy skin conditions.

Modern shampoos use a mix of surfactants and other ingredients to clean, reduce irritation, and improve performance.

In vitro methods are crucial for developing effective and humane cosmetic ingredients.

A new sustainable polyester is tough, recyclable, biodegradable, and aids wound healing, supporting a circular economy.

Hair coloring, waving, and ironing cause more hair damage than not using these treatments.

Permanent waving weakens hair by altering its protein structure.

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

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

Heat worsens damage in chemically treated hair, especially bleached and straightened hair.

Dry shampoo is a convenient, eco-friendly option that cleans and nourishes hair without water.

Bleaching damages hair, making it rougher and weaker.

Water quality affects mineral content in hair, and coconut oil can protect against damage.

Damaged hair allows water to penetrate more easily, and fatty acids from shampoos can deposit on hair surfaces.

Hair coloring and bleaching can permanently break down hair protein and temporarily change its properties.

The method can identify minerals in hair from water, and using coconut oil or conditioner can prevent mineral buildup.

Ozone reacts more with unwashed hair, producing compounds due to scalp oils, which could lower ozone exposure but increase exposure to reaction products.

Several companies launched new hair care ingredients in 2011 to improve conditioning, color retention, combability, and heat protection.