Comparison

IgG Select and Ultimate IgG

IgG Select (Moss Nutrition) lists 3 distinct ingredients and Ultimate IgG (Just Thrive) 3 (rows of one ingredient counted once); 3 are on both labels. On the site's similarity measure, which compares ingredient lists (1 for the same list, rarer ingredients counting for more; amounts are not part of it), the two formulas score 1.00: the same ingredients, at the amounts in the table below.

Amount per serving (and % of the Daily Value)
Ingredient	IgG Select	Ultimate IgG
Protein	2 g	2 g
Immunoglobulin	1,275 mg	2,000 mg
Albumin	125 mg	100 mg

Amounts are per serving as DSLD gives them: IgG Select, 2.5 g; Ultimate IgG, 4 capsules. Current labels entered April 2021 and November 2023. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own

IgG SelectMoss Nutrition: every row against all products listing it
Ultimate IgGJust Thrive: every row against all products listing it