Comparison

PycnoBrain Complex and Pycnogenol 50 mg

PycnoBrain Complex (Doctor's Best) lists 2 distinct ingredients and Pycnogenol 50 mg (GNC Preventive Nutrition) 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 0.64.

Amount per serving (and % of the Daily Value)
Ingredient	PycnoBrain Complex	Pycnogenol 50 mg
Maritime Pine	50 mg	50 mg
Taurine	500 mg

Amounts are per serving as DSLD gives them: PycnoBrain Complex, 1 capsule; Pycnogenol 50 mg, 1 capsule. Current labels entered August 2016 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

PycnoBrain ComplexDoctor's Best: every row against all products listing it
Pycnogenol 50 mgGNC Preventive Nutrition: every row against all products listing it