Ester-C The Better Vitamin CEster-C Effervescent Vitamin C Packets offer 24-hour immune support in a delicious, natural orange flavored formula. Just take one packet daily with 4-6 fl oz of water and you are good to go! Patented Ester-C increases levels of Vitamin C in the body - getting into white blood cells (an important part of your immune system), and staying there longer than regular vitamin C. One serving daily of 1000 mg of Ester-C delivers 24-hour immune support and potent antioxidant activity.365 days a year. The Ester-C Difference:> Clinically studied to stay in white blood cells longer than regular Vitamin C> Patented formula with 24/7 immune support> Once A Day Is All You Need Taken once a day, Ester-C has your immune health covered. It supports circulation, is beneficial to joints and connective tissues, helps fight the premature aging of cells, and forms the basis for healthy skin. Helping to neutralize free radicals, Ester-C also aids in the nutritional absorption of iron and works with other nutrients to promote overall health. Along with essential vitamins, such as B-6 and B-12 to support energy metabolism and vital electrolytes to aid in metabolic hydration, Ester-C Effervescent Formula has got you covered. Now more than ever, trust your immune health to Ester-C. 24-Hour Immune SupportPatented Vitamin C FormulaB Vitamins to Support Energy Metabolism100% Vegetarian Non-GMO No Artificial SweetenersTake.