Douglas Laboratories - Microbiome Protect with IgG - 2.5 oz. (70.5 g) Microbiome Protect w/IgG is a combination of clinically studied dairy-free ImmunoLin immunoglobulins Bacillus coagulans probiotic and a-gluco-oligosaccharide prebiotic to support and protect the intestinal microbiome. As a neutral