Immunoglobulin powder - not to common here?

I've used this before, its for building you immune system where it starts-in the gut.

Anyone else use some type of it? Brands and price?

I use Xymogen brand igy Immunoglobulin powder from eggs. This one does not contain and milk dairy at all. Its $40 for 30 servings, the plastic "jar" is only 4.7 grams.

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