research A Comparative Study on Adipose-Derived Mesenchymal Stem Cells Secretome Delivery Using Microneedling and Fractional CO2 Laser for Facial Skin Rejuvenation [Response to Letter]
This commentary reviews methods for delivering adipose-derived mesenchymal stem cell secretome for facial skin rejuvenation and does not report new clinical results; the authors discuss addressing concerns about administration methods and product characterization.

