Is Immortalized Human Tooth Pulp Stem Cell Extracellular Vesicles vegetarian?

These are extracellular vesicles secreted by immortalized human tooth pulp stem cells into culture media; the cells are immortalized via insertion of HPV E6/E7 and hTERT genes, and the culture media may contain fetal bovine serum.

An ingredient is considered vegetarian if it avoids components derived from killing an animal.

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