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Thioglycerol treatment at pH 9.0 with ammonia causes less hair damage and better waving than thioglycolic acid.

Hydrolyzed wheat proteins penetrate all hair types effectively.

The enzymatic method can effectively identify chemical treatments on hair.

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

Hair perms or treatments seem safe to use up to 3 to 4 times during pregnancy.

Chemical treatments on bleached black hair change its internal structure by breaking and reforming bonds, and treatments with hydrolyzed eggwhite protein help repair it.

Hair cortisol is a reliable marker of long-term cortisol levels and is linked to daytime saliva cortisol but not morning levels.

Women with aging signs and heart issues have higher hair loss risk, which may predict shorter lifespan and affect attractiveness.

Microfibrils are key for permanent waves, and hydrolyzed keratin improves wave formation and hair condition.

Lightly perming scalp hair can lead to new hair growth, potentially treating baldness.

Cortisone may help hair regrow by altering the local environment, with regrowth starting 3-4 weeks after treatment, but its use is not widely recommended.

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

Bleaching hair causes significant damage by breaking down proteins and fatty acids.

Valproic acid can cause reversible hair curling and persistent hair thinning.

Certain diseases like AIDS and lupus can make African hair become silky.

Chemical hair straightening significantly reduces detectable drug levels in hair.

Hair and wool strength is affected by the number and type of bonds in their protein structures, with hair having more protein aggregates than wool.

Permed hair degrades faster and shows more damage after protease treatment compared to untreated hair.

Ethnic differences in hair and skin are significant and under-researched, requiring tailored dermatologic treatments and more study.

Washing permed hair after using thioglycolic acid helps reform strong bonds, making hair stronger.

Nanostructured lipid carriers can effectively repair hair split-ends for over 3 days.

Hair properties change under electromagnetic fields and are influenced by individual characteristics and the environment.

Scientists found a new, less invasive way to study body clocks using hair cells, which shows shift workers' body clocks don't match their lifestyles.

The document concludes that understanding hair structure is key to diagnosing hair abnormalities and recommends gentle hair care for management.

Certain growth factors can promote hair growth in mice by activating hair growth-related proteins.

Hedgehog signaling helps keep hair follicle stem cells the same in both young and old human skin.

Caucasian women's hair appears thickest in their 20s, with perceived thinning after mid-30s due to both decreasing density and diameter.

A hair-straightening product caused widespread hair loss and scalp injuries, mainly affecting African American women.

The article concludes that advancements in hair cosmetics require dermatologists to stay informed about products and their potential risks, including allergies and higher risks for hairdressers.

Better hair care products are needed to protect against grooming and chemical damage.