What is required to test at levels in the nanogram per gram range?

Only highly specialised laboratories are capable of screening supplement products at such low detection levels. Rigorously developed techniques are used eg. liquid and gas chromatography, coupled with mass spectrometric detection.

Supplement companies typically do not have such technologies in house as part of their general Quality Control testing, so sub-contract laboratories must be used.

These sub-contract labs must have undergone accreditation by the World Anti Doping Agency if they are to have the necessary credibility and must use ISO 17025 accredited methods. Informed-Choice uses HFL as its analytical laboratory – which meets all of these criteria.