Comparison

ProArgi-9+ Active Citrus Fusion and L-Arginine 3,000 mg

ProArgi-9+ Active Citrus Fusion (Synergy) lists 7 distinct ingredients and L-Arginine 3,000 mg (Natrol) 4 (rows of one ingredient counted once); 4 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 0.47.

Amount per serving (and % of the Daily Value)
IngredientProArgi-9+ Active Citrus FusionL-Arginine 3,000 mg
Vitamin B64 mg (235%)10 mg (588%)
Vitamin B1212 mcg (500%)50 mcg (2083%)
Folate333 mcg DFE (83%)333 mcg DFE (83%)
Argininenot disclosed3,000 mg
Carbohydrate5 g
Quercetinnot disclosed
Ribosenot disclosed

Amounts are per serving as DSLD gives them: ProArgi-9+ Active Citrus Fusion, 11 g; L-Arginine 3,000 mg, 3 tablets. Current labels entered April 2020 and July 2020. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own