Some individuals worry that if exosomes are derived from human donors (e.g., from mesenchymal stem cells or other cell lines originally sourced from human tissue), and those donors were vaccinated with mRNA vaccines like Pfizer or Moderna, then:
Residual mRNA from the vaccine could somehow be present in the donor’s cells or exosomes.
Those exosomes might then transfer that mRNA into the skincare product or into the user’s own cells.
Essentially, they’re afraid of “vaccine mRNA contamination” being passed along through the exosome manufacturing process.
