The United State Pharmacopeia Convention (USP) has federally recognized standards for dietary supplements, including standards for quality, purity, potency, performance, and consistency of the supplements. By having this certification, CPT℠ Labs has demonstrated a consistent focus on helping quality, trusted products go to market.The ISO issues standards that must be met when a product undergoes testing. While they do not offer certifications themselves, other certification bodies do on behalf of the ISO. For some companies, this certification is legally required for products. CPT Labs℠ is proud to be ISO 17025:2005 certified.