Heavy Metals Testing and Certification

Each batch (lot) of Banyan's herbal tablets is third-party tested for heavy metals here in the U.S. by a qualified independent laboratory. The test we use is called a "Five metal screen" which is the recommended method by the American Herbal Products Association (AHPA). An important factor in heavy metal testing is that the method for testing needs to be able to detect very small quantities of heavy metals. Our test results are measured in µg/g (micrograms per gram, which is equivalent to parts per million or ppm). The metals we test for are lead, mercury, arsenic, cadmium and chromium. All of our herbal tablets are within the allowable limits set by ANSI standard 173 for finished products. The allowable limits are as follows:

Arsenic content shall not exceed 0.01 milligrams per daily dose (mg/d)
Cadmium content shall not exceed 0.006 mg/d
Chromium content shall not exceed 0.02 mg/d
Lead content shall not exceed 0.02 mg/d
Mercury content shall not exceed 0.02 mg/d