The brown colour comes from the natural pigments in the Japanese Knotweed root extract. Our product contains 50% Trans-Resveratrol, a more bioactive form. This colour variation is normal and reflects the high-quality ingredients used. Our product undergoes rigorous third-party testing to ensure potency and purity.
If you have any further questions or if you’d like the Certificate of Analysis, please don’t hesitate to reach out through our contact form—we're here to help!