Are Peptides Legal In California? What Clinics Need to Know Before Offering Them Holt Law Is BPC 157 Legal? Understanding Its Status and Implications Sent GLOW, KLOW, and the TB BPC blend to a lab after 30 days refrigerated. 99.6% purity before. 99.6% purity after. Same milligram content. No measurable degradation. These blends are professionally formulated and Injectable peptides touted as new fountain of youth. But the science isn't there CBC Radio BPC 157: Experimental Peptide Creates Risk for Athletes