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10.1111/febs.15159 FEBS J

FOXO4-DRI Safety and Side Effects: What the Evidence Shows (2026) In the published mouse studies, FOXO4-DRI caused no reported side effects: treated animals kept their weight, blood counts, and organ markers while senescent cells were cleared, and the peptide spared healthy cells in culture

The FDA states there is insufficient information to know whether emideltide/DSIP would cause harm if administered to humans and notes peptide-related concerns such as impurities and immunogenicity, meaning unwanted immune reactions [3]

Most say it feels non-greasy, non-sticky, and layers well with everything