Peptide based substances are largely unproven and risky, experts say, but they're gaining popularity among influencers and athletesand the U.S. secretary of health DIHEXA Beverly Hills Rejuvenation Center DIHEXA Neuro Boost : Amazon.ca: Health & Personal Care A new AP investigation just exposed something shocking: research peptides are flooding Amazon and Alibaba with ZERO quality control requirements. No GMP standards. No mandatory testing. No regulatory oversight.