True Signature reviews
True Signature reviews: 4 independent lab tests across 4 products, with a limited lab record.
Written by the Peptide Vendor Reviews editorial team
Is True Signature legit? Lab record: Limited
How we rate- 4 independent tests
- 1 of 4 lots filled to label
- Median purity 99%
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Peptide Vendor Reviews independently tests products and verifies reviews. Public methodology, no pay-to-rank.
True Signature products we've tested
Best-graded first. Grades come from the share of each product's samples that passed purity and quantity checks. Buy links open True Signature's site.
- Tests
- 1
- Passed
- —
- Tests
- 1
- Passed
- —
- NAD+—
- Tests
- 1
- Passed
- —
- Tests
- 1
- Passed
- —
What the testing shows
Across 4 measured samples from True Signature, 3 came in more than 5% under the quantity on the label (75%). Another 1 measured more than 5% over. Purity across 4 readings ran from 98% to 99.9%, median 99%. Samples span Aug 2026 to Aug 2026.
- Under label
- 3/4
- Median purity
- 99%
- Latest sample
- Aug 2026
more than 5% short
98%–99.9% range
first tested Aug 2026
Lab testing results
Independent results across 4 products.
Individual lab tests
Date
8/12/2026
Purity
99.9%
Quantity
20 mg → 13.2 mg
Lab
Krause Analytical
Vial
White label / Silver crimp / Violet cap
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 |
|---|---|---|---|---|---|---|
| BPC-157White label / Silver crimp / Violet cap | 8/12/2026 | 10.0 | 99.9% | 20 mg → 13.2 mg | Krause Analytical | View |
| 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 |
Which True Signature products tested best
3 of 4 measured lots came in more than 5% under label.
Buying from True Signature
We don't track True Signature's prices yet. Shipping, payment and refund terms are on their site.
The official store is PT-8be7eb8f0f28-2. Check the address before you pay.
What to check before you pay
- The lot number on the vial matches the certificate
- The certificate names the lab and the test date
- Fill versus label, not purity alone
- A refund policy in writing
Track True Signature
Create a free account to save this vendor, get alerts for new lab tests, and watch price changes.
True Signature: common questions
Is True Signature legit?
We rate lab records, not businesses. Limited lab record: 4 independent tests, 1 of 4 lots filled to label, median purity 99%. Each result links to its original certificate in the table above.
What do True Signature reviews say?
We don't hold scored customer reviews for True Signature yet. The independent lab results on this page are the evidence we have.
Is there a True Signature coupon code?
We don't have a verified True Signature coupon code. A discount changes the price, not what is in the vial.