Nitric Boost is soy-free, dairy-free, vegetarian, non-GMO, and subjected to third-party inspections to ensure high quality and purity. Each container is manufactured in the USA at a facility certified by Good Manufacturing Practices (GMP). The facility uses ultra-modern, precision-engineered machinery, operated under the strictest and most sterile conditions. However, we always recommend consulting your doctor before starting any new supplement. Additionally, never stop taking any medications without first speaking with your doctor.