Ester-C and Echinacea Chewable tablets combine Ester-C, a patented form of vitamin C, with Echinacea in a convenient pleasant-tasting chewable tablet.€€Ester-C is absorbed into the blood stream faster and is held in the body longer than ordinary vitamin C, improving its effectiveness.€€Ester-C differs from other vitamin C€€s and is patented and scientifically supported. Ester-C€ is non-acidic and has been proven to be €€€tooth friendly€€ a benefit for people who prefer chewable vitamin C tablets.Echinacea has€€a long history of use in supporting immunity.