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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.

Polymers help reduce damage and improve bleached hair when used during or after bleaching.

AMPD is a better and less damaging alternative to ammonium hydroxide for hair bleaching.

UV radiation damages hair similar to bleaching, but double bleaching causes more severe protein degradation.

Silicone pretreatment protects hair from damage and reduces color fading without interfering with bleaching or dyeing.

Chemical treatments and UV radiation severely damage the lipid layer on hair.

Chemical and physical treatments like bleaching, dyeing, and UV radiation damage both Caucasian and Afro-ethnic hair.

Amino acids in conditioners improve hair strength, hydration, and color retention.

Keratin film can effectively replace human hair for testing hair damage.

Bleaching damages hair the most, while dyes improve combability but still cause protein loss.

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

Cosmetic treatments after chlorination damage hair more than treatments before.

Bleaching hair changes its structure and weakens it, which is important for understanding hair damage and creating treatments.

Castor oil improves the texture of bleached hair by increasing its strength.

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

The enzymatic method can effectively identify chemical treatments on hair.

NaOH treatment improves hair strength and suitability for textiles.

Chemical treatments weaken hair's thermal stability and structure.

A woman got severe scalp burns from a salon's improper hair bleaching treatment.

Bleaching hair damages protein structure, especially keratin, leading to weakened hair.

L-arginine, hydrolysed keratin, and cystine-silanol copolymer can help protect hair from damage during and after bleaching.

Explosions don't stop hair proteins from being used to identify people.

Sunlight and chemical treatments change hair's internal structure differently, needing specific care.

Androgen receptor signaling causes early aging of cells important for hair growth by damaging their DNA.

Chamomile extract can protect hair from damage caused by light.

18-MEA and SPDA can restore damaged hair's smoothness and reduce frizz.

Permanent hair dye damages hair but it mostly recovers after 8 weeks; using certain hair care products can help repair it.

Hair bleaching causes significant damage to hair and skin.

Hair treatments cause significant structural changes, especially with excessive heat, regardless of ethnicity.

Miracle fruit seed oil significantly reduces hair breakage in women with damaged hair.