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Microneedles are effective for drug delivery, vaccinations, fluid extraction, and treating hair loss, with advancements in manufacturing like 3D printing.

Various treatments can improve post-acne scars, but results vary.

Understanding how baby skin heals without scars could help develop treatments for adults to heal wounds without leaving scars.

PLGA nanospheres improve hair growth by effectively delivering ingredients to hair follicles.

Using your own skin cells can help repair aging skin and promote hair growth.

The new matrix improves skin regeneration and graft performance.

Microneedles are effective for painless drug delivery and promoting wound healing and tissue regeneration.

Combining DHT and EDC improves the strength and stability of PADM scaffolds for tissue engineering.

Curcumin nanocrystals in simple gels effectively penetrate hair follicles, but humectants can reduce this efficacy.

GLP-1 receptor agonists, like Dulaglutide, Liraglutide, and Semaglutide, have potential benefits beyond the pancreas, including neuroprotection, pain suppression, cardiovascular protection, obesity management, and cancer treatment, but there are concerns about pancreatitis and pancreatic cancer risks.

Women inventors focus more on women's health, but there are few of them.

New nanocarriers improve drug delivery for disease treatment.

LL-37 helps stem cells grow and move, aiding tissue regeneration and hair growth.

Special cell particles from macrophages can help hair grow.

Nanomaterials show promise in improving wound healing but require more research on their potential toxicity.

Microneedle technology has advanced for painless drug delivery and sensitive detection but faces a gap between experimental use and clinical needs.

Scientists discovered that certain stem cells from mice and humans can be used to grow new hair follicles and skin glands when treated with a special mixture.

Blocking the Wnt/β‐catenin pathway can speed up wound healing, reduce scarring, and improve cartilage repair.

MicroRNAs could improve skin tissue engineering by regulating cells and changing the skin's bioactive environment.

Keratin proteins are essential for keeping the cells in the human colon healthy and stable.

Gene therapy shows promise for healing chronic wounds but needs more research to overcome challenges.

A new method allows for controlled, long-lasting delivery of retinoic acid through the skin with fewer side effects.

A special stem cell fluid can speed up wound healing and hair growth in mice.

The review concluded that keeping the hair-growing ability of human dermal papilla cells is key for hair development and growth.

Stress can cause early aging in certain skin cells, leading to problems with hair growth.

Hyaluronic acid increases collagen synthesis safely, while poly-L-lactic acid may cause complications by affecting fibroblasts.

Nanocarrier technology in cosmetics improves ingredient delivery and effectiveness while reducing side effects.

The conclusion is that understanding how hair follicle stem cells live or die is important for maintaining healthy tissue and repairing injuries, and could help treat hair loss, but there are still challenges to overcome.

Human skin can provide stem cells for tissue repair and regeneration, but there are challenges in obtaining and growing these cells safely.

Conditioned medium from keratinocytes can improve hair growth potential in cultured dermal papilla cells.