What is Ester-C®?
Ester-C® Calcium Ascorbate is a unique and patented form of vitamin C. It is made using a proprietary, water-based manufacturing process which results in a pH neutral product that contains naturally occurring vitamin C metabolites. These metabolites activate the vitamin C molecules making it easier for the body to transport them from cell to cell for numerous health benefits.*
The Science Behind Ester-C®
One clinical study showed that Ester-C® increased vitamin C levels in the body.¹ White blood cell levels of Vitamin C were elevated in subjects receiving Ester-C® when measured after initial dose. The presence of key metabolites such as threonate may contribute to this increased level and retention of Vitamin C by the cells.
In one published study, individuals sensitive to acidic foods were given one gram of vitamin C as ascorbic acid or as Ester-C®. Subjects reported heartburn "significantly more frequent and severe after intake of ascorbic acid" and subjects rated Ester-C® as tolerated "very good" significantly more than ascorbic acid.² So for anyone who has difficulty tolerating vitamin C, it's comforting to know that Ester-C® is non-acidic and gentle on the stomach.*
The main benefit of Ester-C® is its quick absorption and retention in the immune system.*
This unique ingredient:
- Offers active immune support*
- Is non-acidic, so it's gentle on the digestive tract*
- Contains naturally-occurring metabolites for quick absorption and retention
- Is so unique it's patented
- Is backed by science
References
Moyad MA, Combs MA, Vrablic AS, Velasquez J, Turner B, Bernal S. Vitamin C metabolites, independent of smoking status, significantly enhance leukocyte, but not plasma ascorbate concentrations. Adv Ther. 2008 Oct; 25(10): 995-1009.
Gruenwald, J. et al. 2006. Safety and Tolerance of Ester-C® compared with regular ascorbic acid. Advances in Therapy. 23(1): Jan-Feb: 171-8.