True Signature reviews
3 independent lab tests across 3 products · 98.7% average purity
- 3 HPLC samples across 3 products
- Catalog avg purity 98.7%
- PT-8be7eb8f0f28-2
- Independent testing, no pay-to-rank
Boren Health independently tests products and verifies reviews. Public methodology, no pay-to-rank.
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What the testing shows
Across 3 measured samples from True Signature, 2 came in more than 5% under the quantity on the label (67%). Another 1 measured more than 5% over. Purity across 3 readings ran from 98% to 99.9%, median 98.1%. Samples span Aug 2026 to Aug 2026.
- Under label
- 2/3
- Median purity
- 98.1%
- Latest sample
- Aug 2026
more than 5% short
98%–99.9% range
first tested Aug 2026
Lab testing results
Independent results across 3 products.
Tested products
| Product | Grade | Tests | Avg | Range | Latest | Price | $/mg |
|---|---|---|---|---|---|---|---|
| MOTS-c | 1 | % | 98.1% – 98.1% | 8/12/2026 | — | — | |
| NAD+ | 1 | % | 98.0% – 98.0% | 8/12/2026 | — | — | |
| GHK-Cu | 1 | % | 99.9% – 99.9% | 8/12/2026 | — | — |
Individual lab tests
Date
8/12/2026
Purity
98.1%
Quantity
40 mg → 42.3 mg
Lab
Krause Analytical
Vial
White label / Silver crimp / Violet cap
Date
8/12/2026
Purity
98%
Quantity
1000 mg → 857 mg
Lab
Krause Analytical
Vial
White label / Silver crimp / Black cap
Date
8/12/2026
Purity
99.9%
Quantity
100 mg → 87 mg
Lab
Krause Analytical
Vial
White label / Silver crimp / Red cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| MOTS-cWhite label / Silver crimp / Violet cap | 8/12/2026 | 9.8 | 98.1% | 40 mg → 42.3 mg | Krause Analytical | View |
| NAD+White label / Silver crimp / Black cap | 8/12/2026 | 9.8 | 98% | 1000 mg → 857 mg | Krause Analytical | View |
| GHK-CuWhite label / Silver crimp / Red cap | 8/12/2026 | 10.0 | 99.9% | 100 mg → 87 mg | Krause Analytical | View |
About True Signature
Finnrick has tested 3 samples from True Signature across 3 products.