Comparison
Prosterin and A Man's Zinc
Prosterin (UniScience Group) lists 13 distinct ingredients and A Man's Zinc (Vibrant Health) 6 (rows of one ingredient counted once); 6 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 0.56.
| Ingredient | Prosterin | A Man's Zinc |
|---|---|---|
| Zinc | 15 mg (136%) | 30 mg (273%) |
| Phytosterols | 600 mg | 196 mg |
| Beta Sitosterol | 275 mg | 86 mg |
| Stigmasterol | 135 mg | 45.8 mg |
| Campesterol | 165 mg | 52.4 mg |
| Brassicasterol | 25 mg | 7 mg |
| Black Pepper | 5 mg | |
| Pomegranate | 100 mg | |
| Quercetin | 50 mg | |
| Lycopene | 5 mg | |
| Stinging Nettle | 50 mg | |
| Pumpkin | 150 mg | |
| Alanine | 135 mg |
Amounts are per serving as DSLD gives them: Prosterin, 3 caplets; A Man's Zinc, 1 capsule. Current labels entered November 2020 and February 2025. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.
Each product on its own
- ProsterinUniScience Group: every row against all products listing it
- A Man's ZincVibrant Health: every row against all products listing it