Claims of benefits have been amplified by the US health secretary, Robert F Kennedy Jr. How does the evidence actually stack up? Read more in the Antiviral series What health trend do you want examined? Claims of benefits have been amplified by the US health secretary, Robert F Kennedy Jr. How does the evidence actually stack up? Read more in the Antiviral series What health trend do you want examined? I nfluencers are telling their audiences that injectable peptides are the “glow up potion”