Follistatin-344 lab tests
2 certificates of analysis for Follistatin-344 are on file, from 2 shops and 2 labs. The latest was tested on .
These are certificates shops have chosen to publish, verified for authenticity before listing. Because shops decide which COAs to make public, the set reflects the batches they published rather than every production batch — a selection bias we state openly. What shop COAs show →
What the Follistatin-344 record shows
Follistatin-344's record holds 2 certificates from 2 shops, tested by 2 labs between April 2026 and May 2026. All 2 vials were labelled 1 mg. None include an endotoxin result, and 1 was confirmed on the lab's own portal.
Generated from the table below · updates with every new certificate
Every published Follistatin-344 test
| Tested | Shop | Lab | Purity | Measured vs label | Endotoxin | Record |
|---|---|---|---|---|---|---|
| Amino Tech | Janoshik Labs | 97.67% | 1.08 / 1 mg 108% of label | — | View record → | |
| Enhanced Peptides | Vanguard Laboratory | 99.65% | 1.03 / 1 mg 103% of label | — | PP26-0415 |
Measured amount in amber when it is under 90% or over 130% of the label; Check label when it is under 80% or over 150%. Records without a lot number link as View →.
Seven checks for any Follistatin-344 certificate
- Batch-matched and independent. The certificate names the lot in your hands and comes from a lab the vendor neither owns nor pays.
- Purity against the range. Read the figure against what other certificates for this compound report. How to read HPLC and mass-spec results
- Mass-spec identity. Only mass spectrometry shows which molecule is in the vial.
- Net content, measured. Purity and quantity are separate questions. Why 10 mg isn't 10 mg
- Endotoxin on the batch. A missing line means not tested, not passed. Endotoxin testing and LAL interpretation
- A lab you can check. Named on the certificate, with a way to verify it. Testing labs we track · Red flags in a certificate of analysis
- What no test shows. A clean certificate says nothing about efficacy, dosing or long-term safety.
Related lab tests
More on Follistatin-344
Labs with Follistatin-344 tests on file (2): Janoshik Labs, Vanguard Laboratory