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The document concludes that developing generic topical drugs requires ensuring they match the original in quality, composition, and structure, and often involves complex testing and regulatory steps.

Finasteride treats enlarged prostate and may help with baldness, but effects on sexual function and male fetuses are unclear.

Shorter CAG repeats may cause hair and skin issues, while longer ones may link to acne.

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

Scientists made working salivary glands in mice using bioengineered cells, which could help treat dry mouth.

The peptide GHK-Cu helps heal and remodel tissue, improves skin and hair health, and has potential for treating age-related inflammatory diseases.

Chitosan nanofiber scaffolds improve skin healing and are promising for wound treatment.

Tight junctions are key for skin protection and controlling what gets absorbed or passes through the skin.

Bioprinting could improve wound healing but needs more development to match real skin.

Pig skin is a good substitute for human skin to measure drug absorption, but differences in skin structure and enzymes across species must be considered.

The document concludes that a better understanding of cell changes during wound healing could improve treatments for chronic wounds and other conditions.

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

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

Prolactin contributes to hair loss by promoting hair follicle shrinkage and cell death.

Normal skin cell renewal doesn't need RAR signaling, but vitamin A-related skin thickening does.

Substances from Chinese medicines show promise for immune support and disease prevention, but the way they are processed affects their effectiveness.

TRP channels in the skin are important for sensation and health, and targeting them could help treat skin disorders.

The telogen phase of hair growth is active and important for preparing hair follicles for regeneration, not just a resting stage.

Platelet-rich plasma might help with hair growth and skin conditions, but more research is needed to prove its effectiveness and safety.

The document concludes that while significant progress has been made in understanding skin biology and stem cells, more research is needed to fully understand their interactions with their environment.

The hydrogel with a 1:3 ratio of hydroxyethyl cellulose to hyaluronic acid is effective for delivering drugs through the skin to treat acne.

Animals that change color with the seasons mainly do so in response to daylight changes, but climate change is causing camouflage problems that may require evolutionary changes.

More men are getting benign prostatic hyperplasia, and there are many treatments, from medication to surgery, with new methods being developed.

PDGFA/AKT signaling is important for the growth and maintenance of certain skin fat cells.

Skin surface lipids are important for skin health and altering them could help prevent aging and treat skin conditions.

One minoxidil-sensitive potassium channel exists in human hair follicles.

A genetic change in the EDAR gene causes the unique hair traits found in East Asians.

Hair elemental analysis could be useful for health and exposure assessment but requires more standardization and research.

The p75 neurotrophin receptor is important for hair follicle regression by controlling cell death.

Sensitive skin is often caused by nerve fibers and environmental factors, and can be managed with mild skincare and professional advice.