Comparison

Phosphatidyl Serine Complex 500 mg and Non-GMO Soy Isoflavone Concentrate 50 mg

Phosphatidyl Serine Complex 500 mg (Source Naturals) lists 2 distinct ingredients and Non-GMO Soy Isoflavone Concentrate 50 mg (GNC Natural Brand) 1 (rows of one ingredient counted once); 1 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 0.54.

Amount per serving (and % of the Daily Value)
Ingredient	Phosphatidyl Serine Complex 500 mg	Non-GMO Soy Isoflavone Concentrate 50 mg
Soy	500 mg	50 mg
Phosphatidylserine	100 mg

Amounts are per serving as DSLD gives them: Phosphatidyl Serine Complex 500 mg, 1 softgel; Non-GMO Soy Isoflavone Concentrate 50 mg, 1 capsule. Current labels entered August 2023 and November 2011. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own

Phosphatidyl Serine Complex 500 mgSource Naturals: every row against all products listing it
Non-GMO Soy Isoflavone Concentrate 50 mgGNC Natural Brand: every row against all products listing it