Comparison
IsoStak and Iso-Stak
IsoStak (Universal Nutrition) lists 9 distinct ingredients and Iso-Stak (Universal) 10 (rows of one ingredient counted once); 8 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 0.65.
| Ingredient | IsoStak | Iso-Stak |
|---|---|---|
| Vitamin B6 | 3.5 mg (206%) | 3.5 mg (206%) |
| Zinc | 10 mg (91%) | 10 mg (91%) |
| Niacin | 10 mg (63%) | 10 mg (63%) |
| Tribulus | 200 mg | 200 mg |
| Isoflavones | 150 mg | 150 mg |
| Ipriflavone | 100 mg | 100 mg |
| Ecdysterone | 25 mg | 25 mg |
| Methoxyisoflavone | 100 mg | 100 mg |
| Phosphatidylcholine | 10 mg | |
| Chrysin | 25 mg | |
| Lysophosphatidylcholine | 10 mg |
Amounts are per serving as DSLD gives them: IsoStak, 1 capsule; Iso-Stak, 1 capsule. Current labels entered December 2011 and October 2014. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.