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

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

Certain cells from hair follicles can create new hair and contribute to hair growth when implanted in mice.

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

Menopause can lead to skin and hair problems due to hormonal changes, but hormone replacement therapy might help slow these effects.

Some medicinal plants can help heal wounds and may lead to new treatments.

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.

Early diagnosis and individualized treatment improve outcomes for Congenital Adrenal Hyperplasia.

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

Effective treatments for male pattern baldness include oral finasteride and topical minoxidil, while topical minoxidil is best for female pattern baldness.

Vitamin D is important for skin health and may affect conditions like psoriasis and hair loss, but more research is needed to understand its role fully.

Estrogen replacement can improve skin health in menopausal women but doesn't reverse sun damage or prevent hair loss.

Estrogen loss during menopause worsens skin health, but hormone replacement therapy may improve it, though more research is needed.

Fat-derived stem cells show promise for skin repair and reducing aging signs but need more research for consistent results.

Nanoparticles can improve skin drug delivery but have challenges like toxicity and stability that need more research.

Different types of stem cells exist within individual skin layers, and they can adapt to damage, transplantation, or tumor growth. These cells are regulated by their environment and genetic factors. Tumor growth is driven by expanding, genetically altered cells, not long-lived mutant stem cells. There's evidence of cancer stem cells in skin tumors. Other cells, bacteria, and genetic factors help maintain balance and contribute to disease progression. A method for growing mini organs from single cells has been developed.

Damage to skin releases dsRNA, which activates TLR3 and helps in skin and hair follicle regeneration.

Choosing the right patients, using proper techniques, and having thorough knowledge are key to preventing and managing dermal filler complications.

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.

Asia has made significant progress in tissue engineering and regenerative medicine, but wider clinical use requires more development.

Liposomes could improve how skin care products work but are costly and not very stable.

Male pattern hair loss is genetic and influenced by hormones, with treatments like minoxidil and surgery available.

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

Finasteride treats enlarged prostate, shrinks it, improves urination, but may cause sexual dysfunction and isn't for women or children.

Hair mineral analysis might help diagnose diseases early, but standard methods are needed.

Human skin cells produce proenkephalin, which changes with environmental factors and skin diseases.

Imiquimod 5% cream reduced equine sarcoids in most cases.

Cells in hair follicles help create fat cells in the skin by releasing a protein called Sonic Hedgehog.

Some heart drugs show promise for other conditions, but more research is needed to confirm their effectiveness and safety.

Niosomes are promising for skin drug delivery, offering benefits like improved drug penetration and stability.