Comparison

Vayarin and Phosphatidyl Serine Plus DHA

Vayarin (VAYA Pharma) lists 3 distinct ingredients and Phosphatidyl Serine Plus DHA (Doctor's Best) 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 0.70.

Amount per serving (and % of the Daily Value)
IngredientVayarinPhosphatidyl Serine Plus DHA
DHA8.5 mg100 mg
Phosphatidylserine75 mg100 mg
EPA (Eicosapentaenoic Acid)21.5 mg

Amounts are per serving as DSLD gives them: Vayarin, 2 capsules; Phosphatidyl Serine Plus DHA, 1 veggie softgel. Current labels entered September 2019 and January 2018. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own