Dermal papilla cells (DPCs) are an important element of the hair follicle (HF) niche. widely used as an in vitro model to study hair growth-related research. These cells are usually grown in 2D culture. but this system did not show efficient therapeutic effects on HF regeneration and growth. https://www.spidertattooz.com/The-GelBottle-Inc-BIAB-Gel-Polish-Spirited-67oz-p17706/