24-Hour Immune Support* A recent clinical study shows that
Ester-C^® increases Vitamin C levels in your body for up to 24 hours.*¹

Stomach Friendly Ester-C^® is non-acidic, which means it’s gentler
on your stomach.*

Enhanced Absorption with C-Sorb^™ Metabolites in Ester-C^® help to enhance the absorption and retention of Vitamin C in your body.*