This product is a serum-free T cell culture medium with clearly defined ingredients and no animal-derived components, specifically optimized for the efficient activation, large-scale expansion, and functional maintenance of various T lymphocytes. Its core formulation precisely mimics the co-stimulatory signaling microenvironment of in vivo T cell activation. By integrating highly active cytokines such as IL-2 and IL-15 with unique metabolic reprogramming components, it powerfully drives the proliferation of both naive and memory T cells. This significantly enhances their cytotoxic activity, cytokine secretion levels, and in vivo persistence, ensuring sustained high cell viability, phenotypic stability, and functional consistency throughout weeks of culture.