Comparison
Arginine & Ornithine 500 mg / 250 mg and Free Form Arginine & Ornithine 750 mg
Arginine & Ornithine 500 mg / 250 mg (NOW Sports) lists 2 distinct ingredients and Free Form Arginine & Ornithine 750 mg (ASN Advanced Sport Nutriceuticals) 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 1.00: the same ingredients, at the amounts in the table below.
| Ingredient | Arginine & Ornithine 500 mg / 250 mg | Free Form Arginine & Ornithine 750 mg |
|---|---|---|
| Arginine | 1,000 mg | 1,000 mg |
| Ornithine | 500 mg | 500 mg |
Amounts are per serving as DSLD gives them: Arginine & Ornithine 500 mg / 250 mg, 2 veg capsules; Free Form Arginine & Ornithine 750 mg, 2 capsules. Current labels entered July 2025 and February 2013. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.
Each product on its own
- Arginine & Ornithine 500 mg / 250 mgNOW Sports: every row against all products listing it
- Free Form Arginine & Ornithine 750 mgASN Advanced Sport Nutriceuticals: every row against all products listing it