MegaIgG2000 Powder by Microbiome Labs is a dairy-free, serum-derived bovine immunoglobulin concentrate that delivers the highest concentration of immunoglobulins available in a dietary supplement. Unlike colostrum, MegaIgG2000 is derived from serum, making it suitable for dairy-sensitive individuals.
Key Benefits:
- ✅ Gut barrier support — immunoglobulins bind and neutralize toxins, pathogens, and antigens in the gut lumen
- ✅ Immune system modulation — supports a balanced immune response without overstimulation
- ✅ Reduces intestinal permeability (leaky gut) — helps restore and maintain tight junction integrity
- ✅ Supports microbiome diversity — creates a favorable environment for beneficial bacteria
- ✅ Dairy-free & lactose-free — safe for those with dairy sensitivities or lactose intolerance
- ✅ Unflavored powder — easy to mix into water, smoothies, or other beverages
Why Microbiome Labs?
Microbiome Labs is a pioneer in microbiome science, producing clinically researched, practitioner-trusted supplements. MegaIgG2000 is backed by peer-reviewed research and used by integrative practitioners worldwide for gut restoration protocols.
Practitioner Recommended
Selected by Michelle Tonkin ND and Melissa Tonkin CNC based on 20+ years of clinical experience in gut health, immune support, and microbiome restoration.
These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.

