We believe that when using natural tonics, consistency and quality control is the top priority.

Our most important investment continues to be in quality control, assurance, batch testing and analysis.

In addition to rigorous quality control checks during manufacturing, we conduct post-production testing internally and also send finished batches of capsule and liquid tonic to external labs to test for authenticity, composition, toxicity, heavy metals, microbial and other contaminants. 

All natural Phellinus linteus and Phellinus igniarius extracts found inside Amazing Grace products have passed LD50 acute oral toxicity testing: this certifies they are safe for human consumption up to the daily limit of 15,000mg per kg of bodyweight.