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The skin is a complex barrier for drug penetration, but understanding its structure and interactions can improve drug delivery methods.

Cancer treatments often cause hair disorders, significantly affecting patients' quality of life, and better management methods are needed.

The document explains hair growth and shedding, factors affecting it, and methods to evaluate hair loss, emphasizing the importance of skin biopsy for diagnosis.

The conclusion is that measuring how drugs partition into artificial sebum is important for predicting their delivery into hair and sebaceous follicles, and it provides better information than traditional methods.

Scientists have developed a new method to detect steroid abuse in athletes using cell-based tests, which could be the future of anti-doping methods.

Future work on macrolide antibiotic analysis will aim to enhance selectivity, sensitivity, and efficiency using advanced chromatographic methods.

Hirsutism is too much hair growth in women like the pattern in men, often caused by high male hormones, and can be treated with hormone control and hair removal methods.

Trichoscopy is a useful tool for diagnosing and managing hair and scalp conditions, often better than traditional methods.

Children's hair loss can be caused by various factors and should be treated with appropriate, age-specific methods and psychological support.

The EDAR gene mutation leads to thinner and more deformed hair shafts.

Neonate scalp hair is thinner, lacks a medulla, and has smaller follicles compared to adult hair.

Disulfide bonds affect the melting behavior of hair's crystalline structure, but hair retains some stability even after these bonds are broken.

Some children are born with unusually short, fine hair because their hair growth phase is short, but this often gets better by itself during puberty.

Confocal microscopy is better than scanning electron microscopy for studying hair in its natural state and understanding hair products' effects.

Removing external lipids from hair reduces moisture and increases strength, while removing internal lipids decreases water permeability.

Loose Anagen Hair syndrome occurs in dark-skinned children and often improves on its own.

A young cat had a rare hair condition with twisted hair shafts but stayed healthy.

Keratin pretreatment improves the quality of damaged hair during perming.

The demineralized bone matrix scaffold is better for cell attachment than the mineralized bone allograft.

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

Hair treatments cause significant structural changes, especially with excessive heat, regardless of ethnicity.

Treating excessive hair in women requires a holistic approach, including medical, aesthetic, and emotional support.

Explosions don't stop hair proteins from being used to identify people.

Hair transplants can make hair follicles larger and hair shafts thicker.

Lower pH straighteners change hair more but weaken it.

Defective mink guard hairs have split tips and missing cuticle cells, causing a metallic sheen.

Climate-related nutritional stress may cause hair loss in juvenile male Guadalupe fur seals.

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

The study found that injecting spores directly into rabbit skin effectively caused fungal skin infections, with symptoms worsening over time.

Activating TLR3 helps improve skin and hair follicle regeneration after wounds.