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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.

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

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

A dog's facial chemical burn healed in 84 days with conservative treatment.

Ammonium bisulfite in hair bleach can cause facial eczema.

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

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

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

Environmental factors can greatly reduce drug levels in hair.

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

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

Hair restoration surgery can lead to swelling, infections, scarring, numbness, hiccups, and poor hair growth.

Chemical treatments and daily stresses damage hair, especially the cuticle layer.

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

Hair fibers may have a unique, non-protein sheath not previously identified.

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

The enzymatic method can effectively identify chemical treatments on hair.

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

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

Hair care products can cause skin irritation and allergies.

Hydrolyzed wheat proteins penetrate all hair types effectively.

X-ray microscopy can non-invasively show hair structure changes after treatments, but it's less detailed than TEM and needs improvement.

Cosmetic hair treatments can increase hair testosterone levels, while natural hair color does not affect it.

Cosmetic treatments after chlorination damage hair more than treatments before.

Dr. Vera H. Price's 1979 work emphasizes the importance of accurate diagnosis and personalized treatment for hair loss.

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

The document concludes that various treatments, including laser therapy, are effective for managing pseudofolliculitis barbae, especially in darker skin types.

The document concludes that various cosmetic and drug treatments are available for hirsutism, and some new drugs show promise.

Aspartic acid at 0.75% makes perms more effective and less damaging to hair.

Chemical treatments severely damage hair cuticles, especially in previously treated hair.