Serrapeptase enzymes require protection from the acidic environment of your stomach, without a protective coating the enzyme would be denatured and no longer useful. At Natures Aid, our Serrapeptase supplement is manufactured using our unique Entero-coated® technology, allowing the tablet to pass through your acidic stomach environment into your intestine, before it is released and absorbed into your blood stream. Each of our tablets provides 250,000 units of enzymatic activity and are suitable for vegans.