An SVF kit manufacturer develops systems for processing adipose tissue to obtain stromal vascular fraction-derived biological preparations. SVF processing can involve enzymatic or mechanical approaches, with mechanical systems using physical methods such as filtration, centrifugation, emulsification or tissue fractionation.

An autologous exosome kit is a preparation system designed to process biological material obtained from the same individual, such as platelet-rich plasma (PRP), for the preparation of extracellular vesicle-rich biological fractions. Platelets can release extracellular vesicles following activation. However, the terms extracellular vesicle and exosome are not interchangeable. According to current EV nomenclature guidelines, exosome identity requires evidence related to endosomal biogenesis.

Extracellular vesicles (EVs) are membrane-bound particles released from cells, including platelets. Exosomes represent a biogenesis-defined subtype of EVs originating through the endosomal pathway. Therefore, a particle population should not automatically be described as “exosomes” based only on particle size or concentration. Current MISEV2023 recommendations favor the broader term extracellular vesicles when specific biogenesis has not been demonstrated.