Injectable peptides touted as new fountain of youth. But the science isn't there CBC Radio Unauthorized injectable peptide drugs seized and sold by Canada Peptide may pose serious health risks Canada.ca Research Peptides Canada 98%+ Purity Maple Research Labs New: An FDA decision to place 19 peptides on the unsafe list was supported by numerous documented safety concerns, former officials said. Even though demand for peptide therapies has exploded since then,