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Nanocarriers make melatonin more effective and reduce side effects.

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 straightening methods have advanced to improve effectiveness and reduce damage, but still rely on heat and chemicals.

Environmental and cosmetic factors, including heat, chemicals, and sun exposure, can cause hair loss and damage.

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

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

Transfollicular drug delivery is promising but needs more research to improve and understand it better.

Obstetrician/gynecologists can diagnose and manage female hair loss with careful history taking and examination.

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

Hair's resistance to wear varies by ethnicity and treatment, with less wear indicating stronger hair.

Certain hairstyles and less hair oil use in African American girls can lead to scalp conditions like traction alopecia and seborrheic dermatitis.

Good nutrition is crucial for health and preventing disease, and supplements can help prevent nutrient deficiencies.

Detailed patient history and physical exams are crucial for diagnosing hair loss.

The document concludes that proper diagnosis and evidence-based treatments are crucial for managing hair diseases, and psychological support for patients is important.

Different factors like pH, gel type, and chemical enhancers affect how well hydrocortisone gets into hair follicles, and less hydrated skin doesn't work well with the test method.

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

Hair breaks differently when wet or dry and is affected by its condition and treatments like perms and bleaching.

The enzymatic method can effectively identify chemical treatments on hair.

Hair follicles affect how well small molecules can pass through the skin, and this varies depending on the molecule's features.

Minoxidil works well as a high permeability reference drug for biopharmaceutics classification.

Thioglycolic acid and L-cysteine change hair structure differently during perms, affecting hair strength and curling efficiency.

Perming significantly changes hair's molecular structure, while shampoo and conditioner do not.

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

Cosmetic procedures can harm hair, but damage can be minimized with knowledge and care; however, once hair is damaged, it cannot be reliably repaired.

Herbal nano-formulations show potential for effective skin delivery but need more research.

Human hair has a protective lipid layer that can be damaged by moisture and treatments, affecting hair growth and health.

Diagnose and manage CCCA with thorough history, exams, and labs; treat with anti-inflammatory agents, stress reduction, and stopping harmful hair practices.

Afro-textured hair is more fragile and prone to certain scalp conditions, requiring careful treatment and more research for effective management.

Surfactants in shampoos and conditioners remove some but not all lipids from hair, and more research is needed to understand their full impact.

Finasteride delivery through skin improved using invasomes and iontophoresis.