The latest wellness craze involves injecting these molecules for athletic performance, longevity and more. Scientists say the research isn't keeping pace with the health claims.
Search the term "peptides" and a long list of online retailer options will pop up. You'll be offered vials of molecules with funky names that sound like exoplanets: GHK-CU, CJC12-95, Thymosin Beta-4.
These synthetic peptides are growing popular among... [5778 chars]