Comparison
Nighttime Testosterone Support and Z-Test
Nighttime Testosterone Support (PMD) lists 16 distinct ingredients and Z-Test (PMD) 16 (rows of one ingredient counted once); 14 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 0.73.
| Ingredient | Nighttime Testosterone Support | Z-Test |
|---|---|---|
| Vitamin B6 | 5 mg (294%) | 5 mg (294%) |
| Magnesium | 17 mg (4%) | 17 mg (4%) |
| Zinc | 15 mg (136%) | 15 mg (136%) |
| Theanine | not disclosed | not disclosed |
| Melatonin | 3 mg | 3 mg |
| Oats | not disclosed | not disclosed |
| Passionflower | not disclosed | not disclosed |
| GABA | not disclosed | not disclosed |
| Tribulus | not disclosed | not disclosed |
| 5-HTP | not disclosed | not disclosed |
| Diindolylmethane | not disclosed | not disclosed |
| Indole-3-Carbinol (I3C) | not disclosed | not disclosed |
| Chrysin | not disclosed | not disclosed |
| L-DOPA | not disclosed | not disclosed |
| Chamomile | not disclosed | |
| German Chamomile | not disclosed | |
| Agaricus mushroom | not disclosed | |
| Button mushroom | not disclosed |
Amounts are per serving as DSLD gives them: Nighttime Testosterone Support, 3 capsules; Z-Test, 3 capsules. Current labels entered August 2025 and December 2022. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.
Each product on its own
- Nighttime Testosterone SupportPMD: every row against all products listing it
- Z-TestPMD: every row against all products listing it