To prove that Ester-C®
Topical achieves greater stability than ordinary vitamin
C, scientists at Inter-Cal pioneered laboratory and analytical
methods that gauge the stability of vitamin C liquids, topicals
and cosmetics. Extensive accelerated tests revealed the remarkably
long shelf life of the Ester-C®
Topical... and the remarkably short shelf life of ordinary
vitamin C. To understand the stability concept, consider the
vitamin C in your orange juice. You buy it "fresh"
at the market. But as this chart shows, its vitamin C content
deteriorates very rapidly. By contrast, the vitamin C in
Topical lasts over two years with a potency of 90%.