Comparison

Red Wine 30% Polyphenols and Red Wine Extract (30% Polyphenols) Powder

Red Wine 30% Polyphenols (PureBulk.com) lists 1 distinct ingredients and Red Wine Extract (30% Polyphenols) Powder (TerraVita Premium Collection) 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 1.00: the same ingredients, at the amounts in the table below.

Amount per serving (and % of the Daily Value)
Ingredient	Red Wine 30% Polyphenols	Red Wine Extract (30% Polyphenols) Powder
Red Wine	850 mg	1,000 mg

Amounts are per serving as DSLD gives them: Red Wine 30% Polyphenols, 850 mg; Red Wine Extract (30% Polyphenols) Powder, 0.25 tsp. Current labels entered October 2013 and April 2023. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own

Red Wine 30% PolyphenolsPureBulk.com: every row against all products listing it
Red Wine Extract (30% Polyphenols) PowderTerraVita Premium Collection: every row against all products listing it