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Epithelial-mesenchymal interactions control hair growth cycles through specific molecular signals.

The document concludes that mouse models are helpful but have limitations for skin wound healing research, and suggests using larger animals and genetically modified mice for better human application.

Chitin and chitosan are useful in cosmetics for oral care, haircare, and skincare, including UV protection and strength improvement.

Insulin resistance and obesity are key factors in the development and worsening of polycystic ovary syndrome, and lifestyle changes are important for managing it.

Tiny pollution particles called PM2.5 can harm skin cells by causing stress, damage to cell parts, and cell death.

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

Hair follicles help absorb and store topical compounds, aiding targeted drug delivery.

Androgens can both increase and decrease hair growth in different parts of the body.

Lecithin organogels could be good for applying drugs to the skin because they are stable, safe, and can improve drug absorption.

Use minoxidil for hair loss; finasteride and dutasteride for men, dutasteride for women.

Visible light can damage skin and most sunscreens don't block it well; more research is needed on its effects and protection methods.

Hair follicle development and microbes help regulatory T cells gather in newborn skin.

Some herbal therapies may help with skin conditions, but more research is needed to confirm their safety and effectiveness.

Sulforaphane from broccoli can help protect skin from sun damage.

Hair follicles significantly increase the speed and amount of caffeine absorbed through the skin.

Capsaicin, found in chili peppers, can slow down hair growth by affecting skin cells and hair follicles.

Blocking COX, especially COX-2, in the skin can reduce inflammation and pain and may help prevent skin cancer.

The new "differential stripping" method effectively measures how much substance gets into hair follicles.

Latanoprost can make eyelashes longer, thicker, and darker.

Different types of stem cells in hair follicles play unique roles in wound healing and hair growth, with some stem cells not originating from existing hair follicles but from non-hair follicle cells. WNT signaling and the Lhx2 factor are key in creating new hair follicles.

Understanding hair growth involves complex interactions between molecules and could help treat hair disorders.

Caffeine in cosmetics may reduce cellulite, protect skin, and stimulate hair growth, but more research is needed on its use and effects.

Nanoparticles improve drug delivery through the skin but more research is needed on their long-term effects and skin penetration challenges.

Liposomal systems show promise for delivering drugs through the skin but face challenges like high costs and stability issues.

Too much Smad7 changes skin and hair development by breaking down a protein called β-catenin, leading to more oil glands and fewer hair follicles.

Use minoxidil for hair loss treatment; assess results after 6 months.

Young adults have about 230,000 tactile nerve fibers, decreasing 5-8% per decade with age.

Some viruses can cause cancer by changing cell processes and avoiding the immune system; vaccines and targeted treatments help reduce these cancers.

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

Microneedles improve drug delivery in various body parts, are safe and painless, and show promise in cosmetology, vaccination, insulin delivery, and other medical applications.