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

Mammalian hair scales change from smooth to wavy due to friction.

Human hair's ability to get wet is complex and can change with treatments, damage, and environment.

Scientists created a non-toxic, sugar-based hair product that can style hair without damage.

Hair curliness is caused by the arrangement and length of two different cell types.

The herbal cream effectively smooths and straightens hair safely.

The herbal cream effectively smooths and straightens hair safely.

Human hair can be classified into eight types based on physical features, not ethnicity.

Repeated digital perming with sodium thioglycolate lotion significantly damages hair protein and structure.

Hair curliness is due to uneven distribution of different cortices within the hair fiber.

A man with Woolly Hair Syndrome had very curly, fragile hair, and doctors used a special scalp examination to diagnose him without invasive tests.

Formaldehyde damages curly hair more than glyoxylic acid.

Woolly hair is a rare genetic condition with no effective treatments.

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

The automated flat iron can permanently straighten hair without chemicals, especially at 154°C, and silicone improves the results.

Uncombable hair syndrome causes dry, frizzy hair that can't be combed flat, seen in a young child.

Chemical hair straighteners can severely damage hair and scalp with repeated use.

New genes linked to woolly hair have been found, which could help treat it and change hair texture.

For best curls and hair health, use keratin and ceramide after rinsing, or skip rinsing for stable curls.

Human hair surface varies in wettability, showing daily and monthly patterns.

Healthy hair is shiny, smooth, and has clean ends.

Human hair movement is affected by its inner structure and chemical treatments.

The new test shows how hair treatments affect hair's bending stiffness by swinging a pendulum through hair fibers.

White hair has less lipid content and absorbs water differently than brown hair.

Frequent use of hair straighteners can cause hair loss similar to scarring alopecia in young Turkish women.

Permanent wave treatment with thioglycolic acid changes hair structure by altering disulfide bonds.

Skin patterns are formed by simple reaction-diffusion mechanisms.

The new method can tell how hair fibers react to moisture after treatments.