Comparison

Immuno Defense 4x and EpiCor 500 mg With Vitamin D-3 2000 IU

Immuno Defense 4x (JayLab Pro) lists 4 distinct ingredients and EpiCor 500 mg With Vitamin D-3 2000 IU (GNC Preventive Nutrition) 2 (rows of one ingredient counted once); 2 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 0.52.

Amount per serving (and % of the Daily Value)
IngredientImmuno Defense 4xEpiCor 500 mg With Vitamin D-3 2000 IU
Vitamin D25 mcg (125%)50 mcg (250%)
Saccharomyces cerevisiae500 mg500 mg
Bromelain150 mg
Quercetin500 mg

Amounts are per serving as DSLD gives them: Immuno Defense 4x, 2 capsules; EpiCor 500 mg With Vitamin D-3 2000 IU, 1 capsule. Current labels entered May 2021 and March 2012. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own