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Bleaching and combing damage hair's surface and mechanical properties.

Hair analysis can show nutritional status and environmental exposure, with phosphorus being very stable in hair and differences found based on gender and conditions like depression and autism.

Skin cell-derived vesicles can help heal skin injuries effectively.

Microneedle arrays with nanotechnology show promise for painless drug delivery through the skin but need more research on safety and effectiveness.

All five hair fiber products improved appearance but didn't stick to completely bald areas.

The new automatic tool accurately measures hair thickness and is reliable.

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

Desolvation of finasteride depends on environment and technique.

A new hair treatment using a natural polyphenol complex improves hair strength, reduces static, and protects against UV damage.

Melanin density affects hair color, and this method can help in cosmetic assessments and diagnosing hair diseases.

Advancements in hair follicle culture have led to better understanding and potential treatments for hair loss.

Castor oil-based polyurethanes are promising for making safe, strong-performing, eco-friendly hair-styling products.

Hair follicle culture helps study hair growth but has limitations in modeling the full hair cycle.

Hair damage increases significantly with higher temperatures and longer heating times.

Boron deficiency in maize affects leaf boron levels and nutrient uptake differently depending on root hair presence and soil type.

Excessive selenium from a supplement caused toxicity but patients recovered with care.

Microneedles with enhancer effectively promote hair growth and increase hair density.

Surgical methods for hair loss are less common than hair transplants but still useful, especially for scarring hair loss.

Low ERCC3 gene activity is linked to non-pigmented hair growth.

Polymeric nanoparticles show promise for treating skin diseases.

Some vitamins and minerals like vitamin D and iron can help with certain types of hair loss, but more research is needed for others.

Different types of sun exposure damage skin cells and immune cells, with chronic exposure leading to more severe and lasting damage.

Using sharp tools and the right techniques in hair transplant surgery leads to less damage to hair follicles.

The document concludes that developing generic topical drugs requires ensuring they match the original in quality, composition, and structure, and often involves complex testing and regulatory steps.

Skin grafts are effective for chronic leg ulcers, especially autologous split-thickness grafts for venous ulcers, but more data is needed for diabetic ulcers.

Three new finasteride solvates found, change forms under different drying conditions.

Melasma treatment is difficult, but combination therapies and personalized plans show promise.

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

A specific RNA modification in cashmere goats helps activate hair growth-related stem cells.

In Japan, sex reassignment surgery for gender identity disorder faces challenges and needs better medical support and education.