Quercetin Anhydrous is the water-free, dehydrated form of quercetin, a naturally occurring flavonoid widely found in fruits, vegetables, and grains-particularly in onions, apples, berries, and green tea. As a powerful bioflavonoid, it is renowned for its strong antioxidant and anti-inflammatory properties, helping to neutralize free radicals and reduce oxidative stress in the body. The anhydrous form offers enhanced stability and purity compared to its hydrated counterpart, making it a preferred choice for dietary supplements and formulations. Quercetin is commonly used to support immune health, cardiovascular function, respiratory wellness, and exercise performance, and is often combined with other nutrients like vitamin C or bromelain to improve absorption and efficacy.