Is Stack NSF Certified for Sport®?

Stack is formulated with one priority above all: your safety. We are in the process of obtaining NSF Certified for Sport® status for Stack and we’ve implemented rigorous measures to ensure Stack is safe for professional athletes. Here’s why you can trust Stack:

NSF for Sport Certification (In Process): We are in the process of obtaining NSF Certified for Sport® status for Stack. This certification is the gold standard in sports nutrition, in fact, the U.S. Anti-Doping Agency (USADA) recognizes NSF Certified for Sport as the program “best suited for athletes to reduce the risk from supplements”.

Certified Safe Manufacturing: Stack is produced in a top-tier manufacturing facility. The plant is GMP-compliant (Good Manufacturing Practice), FDA-registered, and holds ISO quality and food safety certifications. No banned substances are ever present on site, which means virtually zero risk of cross-contamination with any prohibited compounds. We also enforce strict quality control: every ingredient supplier is audited and all raw materials are tested for purity before production.

Rigorous Third-Party Testing: Every production batch of Stack is third-party tested to ensure it’s clean and safe. We partner with Contract Testing Laboratories of America (CTLA) – an NSF-certified laboratory to verify the claims from the manufacturer are accurate.

Commitment to Clean Sport and Quality: We foster a company culture of safety, transparency, and fair play. There is zero tolerance for banned substances at any point in our process. We maintain meticulous production records and standard operating procedures to uphold quality. We understand that rigorous oversight is essential. Even high-quality raw ingredients can pose risks if not carefully vetted, so we go above and beyond regulatory requirements to protect athletes. By voluntarily implementing these safeguards (even before they’re mandated), we demonstrate our commitment to clean sport and to earning your trust.

Transparency and Full Traceability: We believe you deserve complete confidence in what you put in your body. Every Stack batch is fully traceable from ingredient sourcing to final product. We maintain detailed documentation for each batch, including Certificates of Analysis (COAs) and third-party lab results.

Your safety is our mission. We are proud of the rigorous steps we take to ensure Stack helps you perform at your best without compromising your health or your integrity. If you have any questions or would like to see our full testing and quality documentation, please reach out, we’re always here to help keep you informed and confident in our product.