Regenerated hair follicle primordium aggregation manufacturing method, hair follicle tissue-containing sheet, and method for manufacturing hair follicle tissue-containing sheet

The present invention provides a method for manufacturing, in a simple manner, a regular, high-density regenerated hair follicular primordium aggregation that is similar to mammalian hair follicle tissue. A regenerated hair follicle primordium aggregation manufacturing method according to the present invention includes a step for forming hair follicle primordia by inoculating a microwell plate formed of regularly-arranged minute depressions with mesenchymal cells and epithelial cells, and by culturing the mixture thereof while supplying oxygen thereto.