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The U.S. FDA regulates cosmetics for appearance purposes, but not as strictly as some other countries.

Covers common skin issues in kids, their diagnosis, treatment, and need for specialist care.

UVB is good for a skin condition in Asian kids, a lotion works for head lice, a drug helps with a skin blistering disorder, a foam reduces itchiness in skin inflammation, birthmarks can be more widespread, and criteria for a neurocutaneous disorder were agreed upon.

Eat antioxidant-rich foods, reduce fast food, and explore various treatments for vitiligo.

Sex hormones like estrogen and testosterone may affect COVID-19 severity differently in men and women, potentially influencing prevention and treatment strategies.

Different species and human skin models vary in their skin enzyme activities, with pig skin and some models closely matching human skin, useful for safety assessments and understanding the skin's protective roles.

Hydroxychloroquine may help delay skin damage in lupus patients.

Tretinoin gel is safe for sun exposure, but tacalcitol doesn't significantly improve non-segmental vitiligo.

Smoking harms skin health, causing slower wound healing, more wrinkles, and worsening some skin conditions, but may protect against certain others.

Lichen planus pigmentosus causes dark skin patches and is treated by avoiding triggers and using anti-inflammatory medications.

Macroalgae compounds offer sustainable, effective benefits for cosmetics.

New methods improve how we test hair growth treatments, but challenges like slow hair changes and high costs remain.

KAP-depleted hair causes less immune response and is more biocompatible for implants.

The Automatic Biofibre® Hair Implant is a fast and effective hair restoration method that provides immediate cosmetic benefits and good results in over 90% of cases, but requires proper care to avoid complications.

Different tests are used to see how hair care products affect hair, and choosing the right test is important for accurate results.

Alopecia areata treatment varies, with no optimal method established yet.

Lipophilic dyes accumulate more in hair follicles when delivered with surfactant-propylene glycol solutions.

Forensic hair analysis for drugs is now more reliable and accurate.

Hair follicles may soon be used more for targeted and systemic drug delivery.

Avoiding dyed wigs and clothing improved severe allergic reactions in a woman treated with diphencyprone.

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

Hair follicles help substances penetrate the skin faster and more effectively.

SHED-CM can reduce hair graying and protect against damage from X-rays.

Bleaching hair removes its protective top layer and exposes more hydrophilic groups, changing its chemical surface and affecting how it interacts with products.

Liposomes and niosomes improve finasteride delivery for hair loss treatment.

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

Minoxidil promotes hair growth by penetrating skin, with ethanol-containing formulas working best.

Nanoparticles around 600-700 nm can effectively enter and stay in hair follicles for days, which may help in delivering drugs to specific cells.

Researchers developed a method to measure drugs in hair follicles and found that both water-loving and fat-loving drugs can be detected after being applied to the skin.

Hair analysis is better than urine and blood for detecting past drug use.