All Dr. Mercola Liposomal Vitamin C bottles are sold with the "Dr. Mercola Premium Products" seal of authenticity on the cap of the bottle</br>Dr Mercola Liposomal Vitamin C utilizes liposomal technology for higher-bioavailability potential?? and protects against occasional intestinal discomfort</br>This liposomal vitamin C provides a higher dosage than traditional oral vitamin C supplements and may help you avoid intravenous applications if a higher dosage is required</br></br>Product Description</br></br>There's a major problem with traditional oral vitamin C. It just does not have the bioavailability advantages of liposomal technology. What that means to you is that sometimes you can't take as much vitamin C as you would like because it could cause digestive issues. That's one of the reasons why Dr Mercola created Liposom