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Active transdermal technologies in cosmetics help deliver skin treatments effectively, but their safety and effectiveness depend on skin type and treatment choice.

The study found that long-term sun exposure does not significantly affect follicular plugs on the scalp, and the scalp's appearance is unique compared to other body parts.

Bioactive molecules show promise for improving skin repair and regeneration by overcoming current challenges with further research.

Cultured epithelium can form hair follicles when combined with dermal papillae.

Pig skin cells can turn into mesodermal cells but lose their ability to become neural cells.

Current therapies cannot fully regenerate adult skin without scars; more research is needed for scar-free healing.

Azelaic acid may help treat acne by killing bacteria, reducing inflammation, and preventing clogged pores.

Horse skin has a layered epidermis, a dermis with hair follicles, sweat and sebaceous glands, and is supplied by small arteries.

Using anthralin and calcipotriene together might help treat tough cases of alopecia areata, but more research is needed to understand how it works.

Activating Wnt in skin cells controls the number of hair follicles by directing cell movement and fate.

Obesity can weaken the skin's ability to fight infections because fat cells stop and reduce the infection-fighting properties of nearby stem cells.

New materials and methods could improve skin healing and reduce scarring.

The conclusion is that grasping how cells determine their roles through evolution is key, with expected progress from new research models and genome editing.

Chemicals and stem cells combined have advanced regenerative medicine with few safety concerns, focusing on improving techniques and treatment effectiveness.

The secretome from mesenchymal stem cells is a promising treatment that may repair tissue and avoid side effects of stem cell transplantation.

Zinc oxide nanoparticles in sunscreen do not penetrate deep into the skin.

Hair follicle stem cells are key for hair and skin regeneration, can be reprogrammed, and have potential therapeutic uses, but also carry a risk of cancer.

Estrogens significantly influence hair growth by interacting with receptors in hair follicles and may help regulate the hair growth cycle.

Finasteride 1mg helps reverse hair miniaturization in men and postmenopausal women.

The document concludes that understanding the sebaceous gland's development and function is key to addressing related skin diseases and aging effects.

Hormonal treatments, including birth control and antiandrogens, can effectively treat acne in women.

The Wnt/β-catenin pathway helps tissue regeneration but can also cause fibrosis, and drugs that inhibit this pathway may aid in healing skin and heart tissues.

Improving skin barrier and using antifungal treatments can help manage dandruff.

The document concludes that dandruff and seborrheic dermatitis are linked to inflammation and skin changes, and treating them with specific shampoos can reduce these issues.

Certain genes control the color of human hair by affecting pigment production.

Dermal Papilla cells are a promising tool for evaluating hair growth treatments.

Hair grays due to oxidative stress and fewer functioning melanocytes.

Minoxidil and finasteride treat hair loss; more research needed for other options.

Compartmentalized organization might be crucial for stem cells to effectively respond to growth or injury.

Hedgehog signaling helps keep hair follicle stem cells the same in both young and old human skin.