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

Hair absorbs molecules differently based on their size, charge, and love for water, and less at higher pH; this can help make better hair products.

A new method accurately measures amino acids in treated hair, showing bleaching reduces amino acids while protein treatments increase them.

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

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

Microplastics in the Lebanese Mediterranean carry harmful pollutants, posing environmental and health risks.

Particles around 100 nm can penetrate and stay in hair follicles without passing through healthy skin, making them safe for use in topical products and useful for targeted drug delivery.

Polyesters show promise for repairing damaged blood vessels.

AI improves biomaterial design by making it faster, cheaper, and more effective for personalized medicine.

The review concludes that the Ziziphus species, especially jujube, may promote hair growth and have various health benefits, warranting more research.

Doxorubicin causes heart damage, so early detection and monitoring are important during chemotherapy.

Surface and internal treatments can help prevent hair lipid loss during washing.

Skin aging is largely due to differences in stiffness and elasticity between skin layers, leading to wrinkles.

Pure carbon nanotubes are safe for mice, but impure ones cause immune issues and hair loss.

Nanozymes greatly improve biocatalysis by being stable, efficient, and versatile.

The document concludes that various clinical methods are used to assess ageing skin and the effectiveness of anti-ageing products.

Male skin gets drier and more alkaline as it ages, which may need different skincare than women's skin.

Nanostructured lipid carriers are promising for improving drug delivery in medicine and food.

Iron oxide nanoparticles improve skin penetration and drug release for hair loss treatment.

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

Orobanche rapum extract rejuvenates skin and protects skin bacteria, leading to healthier skin.

Hydrogenated palm oil repairs and conditions damaged hair by preventing swelling.

Lipids in Japanese hair help maintain glossiness and structure.

Nanoparticles improve cancer treatment by reducing side effects and targeting cancer cells better.

Hair dyes and perms can damage hair and scalp, but using interventions can reduce harm.

A new one-step test can quickly identify skin cancer during surgery.

Targeting drugs to hair follicles can treat skin conditions, but reaching deep follicle areas is hard and needs more research.

Age-related immune changes worsen Parkinson's disease, suggesting new treatment strategies.

Red LED light boosts cell activity and growth, aiding wound healing and blood vessel repair.

Pequi and buriti oils improve curly hair's gloss and strength.