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Vitamin A deficiency changes cattle hair structure, while pregnancy may improve it, suggesting hair can indicate cattle health.

Mf-rich hair degrades more than Ma-rich hair, especially with Proteinase K.

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

Asian hair is generally straight and thick, with unique disorders and properties, and more research is needed to understand it fully.

Human hair keratin fibers have a detailed nano-scale structure that changes with different conditions.

Pollution exposure speeds up hair damage.

Nanoemulsions improve stability and delivery of active ingredients in cosmetics for skin and hair care.

Aging makes hair thinner and rougher, with less clear edges.

Reducing copper (II) ion levels in hair can decrease hair damage.

Heat damages hair, with Asian hair losing more protein than Caucasian hair.

The research found that postmortem root bands in hair are likely caused by the breakdown of a specific part of the hair's inner structure after death.

Shampoos have evolved into multifunctional products with patented innovations for different hair needs and can include medicinal herbs for hair and scalp health.

Yak belly hair has higher porosity and is less stiff than human hair, making it absorb dye better but less suitable as a direct substitute for hair dyeing.

Coconut oil makes hair stronger and more flexible than mineral oil.

Hair dyes and perms can damage hair and scalp, but using interventions can reduce harm.

Hair analysis is better than urine and blood for detecting past drug use.

Permanent hair dyes use chemicals that react with hydrogen peroxide to create color.

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

Microfluorometry effectively measures how much polymer coats and penetrates hair, useful for evaluating hair products.

Immuno-cosmeceuticals from chicken egg yolk can effectively repair and improve damaged hair.

16-MHA can restore the barrier and moisture of damaged hair, making it similar to undamaged hair.

Lipids are important for healthy hair, but their exact role is not fully understood and needs more research.

Eating raw cheonggukjang improves scalp hair in middle-aged women.

Hematin in shampoo helps repair and straighten damaged hair.

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

Curved human hair has different structures on each side, which might cause its shape and is similar to wool.

Calcium fatty acid deposits found in human hair can change its appearance and feel.

Different hair cleaning methods caused varying levels of damage to the hair's outer layer.

Hair lipids do not protect against humidity.

Ceramide-rich liposomes can effectively repair and strengthen damaged hair.