Ascorbic acid, pure powder and pharmaceutical quality (USP Grade). No additives or fillers.The cause of the bitter flavor in yerba mate is due to the plant's tannins. You can neutralize the tannins by adding just a sprinkle of ascorbic acid (vitamin c) to your water or directly to the dry leaves. The result is a very smooth and easy to drink yerba mate.
Tannins are a type of antioxidant that gives red wine, beer, coffee and tea a bitter flavor. Although tannins may have some health benefits, they also act as anti-nutrients, decreasing the amount of calcium and iron your body absorbs. Taking certain steps such as adding citrus juice or our pure Vitamin C powder can help limit the nutrient-binding actions of tannins.