Microbiome Labs Mega IgG2000 Immunoglobulins are the antibodies your immune system produces to identify and neutralize threats — and the gut mucosal lining relies on a steady supply of them to maintain barrier integrity and keep inflammatory triggers from crossing into systemic circulation. Mega IgG2000 delivers a concentrated dose of serum-derived immunoglobulins (IgG, IgM, and IgA) to support exactly that, with over ten published human clinical trials behind the key ingredient. What sets it apart from colostrum products is the source. Most immunoglobulin supplements on the market are milk-derived, which means they contain lactose, casein, and beta-lactoglobulin — problematic for anyone with dairy sensitivities. Mega IgG2000 is sourced from bovine serum rather than milk, making it free from all three while still delivering a clinically relevant concentration of immunoglobulins. The practical application is broad: gut barrier support, reduction of endotoxin burden (particularly LPS), digestive recovery after antibiotics or illness, and as a foundational piece of a leaky gut or immune protocol. Mix one scoop into cold water or a liquid of your choice daily. Bovine-based — avoid with beef allergy. Use under practitioner guidance during pregnancy or with medical conditions. Powder | Dairy-free | Lactose-free | Casein-free These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent disease.