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Human hair varies widely and should be classified by curl type rather than race.

Curly/coily hair products are more expensive than straight hair products.

Mixed-race individuals have hair with varied shapes and more root damage.

Afro-textured hair needs personalized care due to its unique genetic traits.

Hair straightening changes hair structure and can cause damage if done wrong, but improvements in the methods are expected to continue.

Brazilian keratin treatments can straighten hair but may contain harmful formaldehyde.

The most common causes of hair loss in children in South-East Nigeria are fungal infections and alopecia areata.

UV radiation and visible light can damage hair, but there are ways to protect it.

The document concludes that clinicians should be aware of common hair and scalp disorders in women of African descent and that more research is needed to develop effective treatments.

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

Proper hair care and safe use of hair products are crucial for those with hair loss.

Hair can't be reliably repaired once damaged; prevention and proper product use are key to maintaining hair health.

The article concludes that the global hair trade is exploitative and reflects complex cultural and economic issues.

Human hair has a new region with ordered filaments and the cuticle contains β-keratin sheets.

Hair style affects perceptions of age, health, and attractiveness more than hair color does.

Human hair shows promise for non-invasive medical testing, but more research is needed to standardize its use.

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

A genetic change in the EDAR gene causes the unique hair traits found in East Asians.

The normal range for the hair pull test is 2 hairs or fewer, and washing or brushing hair before the test does not affect the results.

Dermatoscopy helps diagnose hair and scalp disorders in people with Afro-textured hair, but more research is needed for better understanding and treatment.

Hair straightening can damage hair and pose health risks, including exposure to carcinogens and hair loss.

Different techniques measure hair properties to ensure cosmetic products work.

Certain DNA variants can predict straight hair in Europeans but are not highly specific.

CCCA is a hair loss type affecting African women, possibly caused by grooming and chemicals, with various treatments and needing more research.

The document concludes that proper diagnosis and a combination of medical, hair-care, and surgical treatments are important for managing alopecia in black women.

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

CCCA is a common scarring hair loss in African descent women, possibly linked to genetics, hair care practices, and health issues like diabetes.

Tight hairstyles, especially on chemically treated hair, can cause reversible hair loss if caught early but may become permanent if not addressed.

Hair protein composition is similar across different races and shapes.

Curly hair is mechanically different from straight hair and may need new testing methods.