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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.

Synthetic hair fibers for hair restoration were controversial in 2009 due to health risks and lack of support from the International Society of Hair Restoration.

Too much zinc in the diet can cause hair loss and color change in young mice by reducing copper in the body.

The essential oil from Chamaecyparis lawsoniana has strong antibacterial and antifungal effects, especially against yeast and Gram-positive bacteria.

Cold waving solutions quickly reduce cystine to cysteine in hair.

UV radiation damages hair by creating holes and peeling cuticle layers.

Hair absorbs molecules differently based on their size, charge, and love for water, and less at higher pH; this can help make better hair products.

African hair has the most lipids, while Caucasian hair is more hydrated and stronger.

Chemical hair straightening improves smoothness and shine but may cause side effects, suggesting a need for safer methods.

Rice bran oil extracted by supercritical CO2 is considered non-genotoxic.

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

Mexican women's hair is between Asian and Caucasian hair in thickness and shape, with varied strength and some damage.

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

Heat transfer in hair is slower in groups of hair, increasing the risk of damage from high-temperature styling tools.

A new method accurately measures amino acids in treated hair, showing bleaching reduces amino acids while protein treatments increase them.

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

Hair's resistance to wear varies by ethnicity and treatment, with less wear indicating stronger hair.

Galla chinensis solution effectively treats fungal skin infections in dogs.

Teratoma hair is similar to scalp hair but has a rougher surface and lower adhesive force.

The enzymatic method can effectively identify chemical treatments on hair.

Three cost-effective methods accurately measure finasteride in pharmaceuticals, better than current techniques.

Rice bran extract caused moderate skin irritation but no eye irritation, while a diluted essence was not irritating to skin and only slightly to guinea pigs.

Understanding hair surface properties is key for effective hair care products.

Natural plant-based substances can be used as effective hair dyes.

New treatments and management strategies for skin conditions like melanoma and Spitz naevi were discussed at the dermatologists' meeting.

KF2BL20 does not have proven benefits for maintaining normal hair.

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

Cimetidine cream shows potential for treating warts and female-pattern hair loss.

The hairpiece matted due to weathered hair after shampooing.

Hair analysis can offer clues about a person, but individual differences limit making precise identifications.