20% Immunoglobulins. Colostrum Chewables are sourced from 100% pure new Zealand colostrum. The colostrum is obtained from the cow within 48 hours of calving and processed in New Zealand under a fully implemented HACCP (Hazard Analysis Critical Control Point) program. Each great-tasting sugar-free vanilla chew features 20% Immunoglobulins which includes all four key immunoglobulins; lgC IgM IgA and secretary IgA. This concentration of nutrients is intended to provide nutritive support for general health and well-being.