Vitamin C is important, but for some people its acidity levels can lead to bowel discomfort. Using liposomal technology Vitamin C & Quercetin Liposomal helps gentle absorption and bioavailability. It comes in an easy to take liquid format with natural fruit flavours. Quercetin is a flavonoid, usually found in nature with vitamin C. It helps increase the potential of vitamin C, provides additional antioxidant support and a healthy response to allergens.