The Certificate of Analysis Reveals the True Contents
In supplement manufacturing, raw material quality varies by supplier. A responsible manufacturer requires an independent laboratory Certificate of Analysis (CoA) for every incoming batch of raw materials. The certificate verifies the concentration of active compounds and checks for contaminants. For instance, heavy metals that accumulate from soil into plants, such as lead, cadmium, arsenic, and mercury, must be tested carefully, especially in plant-derived products like pine bark extract. If a raw material fails to meet strict thresholds, the batch is rejected from production.
What to Check on the Test Report
A supplier's word alone is not enough; products are tested in a third-party laboratory before packaging.
- Microbiology: Yeasts, molds, salmonella, and coliform bacteria are always tested.
- Heavy metals: Values must remain below the maximum limits set by the European Food Safety Authority.
- Identity testing: Infrared spectroscopy verifies that the raw material chemically matches what was ordered.
Why This Matters for the User
Substances intended for muscle recovery enter your body directly. If a product contains impurities or heavy metals, the burden on the liver and kidneys increases, impairing recovery. Transparent testing ensures that the container holds only the pure ingredient you paid for.