Ester C ® is a patented form of neutral vitamin C for the stomach. Vitamin C helps reduce fatigue, contributes to the normal functioning of the immune system and protect cells from oxidative stress. Patented, non-acidic, easily absorbed form of vitamin C that minimizes gastrointestinal upset. Excellent antioxidant. Contains no sugars, salt or starch and is suitable for vegans. Presentation 50 tablets.