To ensure consumer safety and legal entry into various markets, suppliers must provide GMP (Good Manufacturing Practice) and HACCP (Hazard Analysis and Critical Control Points) certifications. For the US market, FDA Registration is essential, while the EU requires compliance with EFSA regulations. Furthermore, for sports nutrition, look for Informed-Choice or NSF Certified for Sport seals, which guarantee the product is free from banned substances. Always request a Certificate of Analysis (COA) for every batch to verify protein content and the absence of heavy metals like Lead, Arsenic, and Mercury.