2025. A Novel Regenerative Approach for Acne Vulgaris Using Combined Umbilical Cord Mesenchymal Stem Cell-Derived Secretome and Platelet-Rich Plasma: A Case Report. International Journal of Cell and Biomedical Science. 4, 11 (Oct. 2025), 359–366. DOI:https://doi.org/10.59278/cbs.v4i11.71.