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3D bioprinting is advancing in plastic and reconstructive surgery, especially for creating tissues and improving surgical planning, but faces challenges like vascularization and material development.

Nanotechnology could improve hair regrowth but faces challenges like complexity and safety concerns.

Tiny particles called extracellular vesicles show promise for treating skin conditions and promoting hair growth.

The document concludes that the understanding of scar formation is incomplete and current prevention and treatment for hypertrophic scars and keloids are not fully effective.

Natural small molecules can help treat diseases by activating or inhibiting the Wnt pathway.

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

Tiny particles called extracellular vesicles show promise for skin improvement and anti-aging in facial care but face challenges like low production and lack of research.

Microneedles with extracellular vesicles show promise for treating various conditions with targeted delivery.

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

Nanotechnology shows promise for better chronic wound healing but needs more research.

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

IL-6 from stem cells helps repair skin and grow hair.

The secretome from mesenchymal stromal cells shows promise for improving facial nerve injury treatment.

iPSCs could help develop treatments for hair loss.

ADSC-derived extracellular vesicles show promise for skin and hair regeneration and wound healing.

Mesenchymal stem cells may help treat hair loss by improving hair cell growth and reducing inflammation.

Exosomes from special stem cells help treat ulcerative colitis by reducing inflammation and stress.

Bone marrow stem cells and their medium help hair regrowth.

PlacMA hydrogels from human placenta are versatile and useful for cell culture and tissue engineering.

Microneedle-assisted therapy with human basic fibroblast growth factor significantly regrew hair in patients with hair loss.

The CuCS/Cur wound dressing helps regenerate nerves and heal deep skin burns by rebuilding hair follicles.

New methods to test hair growth treatments have been developed.

Wharton’s Jelly stem cells from the umbilical cord improve skin healing and hair growth without scarring.

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

Bio-pulsed stimulation increases production of beneficial vesicles from bird stem cells that improve skin and hair cell functions.

Mesenchymal stem cells show promise for treating various skin conditions and may help regenerate hair.

Stem cells have great potential for improving wound healing, but more research is needed to find the best types and ways to use them.

Stem cells and their secretions could potentially treat stress-induced hair loss, but more human trials are needed.

Bone-forming cells grow well in 3D polymer scaffolds with 35 µm pores.

Human hair follicle cells can be turned into stem cells that may help clone hair for treating hair loss or burns.