P21 (P021) × americanpeptides.us — Lab Test, April 2026
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Test results
This is a purity and identity analysis. Sterility, endotoxins, and heavy metals were not screened — a high purity figure says nothing about those.
About this test
Label 5 mg · Lab measured 5.42 mg
108% of label, basis not stated — shown as printed. Reconstituted with 2 mL, a 50-unit draw holds 1.4 mg using the measured mass, against 1.3 mg on the label — 8% more.
One vial from this lot was weighed by the laboratory, not yours. This page reports what the certificate says; it does not recommend a dose.
Independent HPLC purity analysis of P-21 from americanpeptides.us, performed by Bioviridian on April 3, 2026. Reported purity: 99.6%. Net content: 5.42 mg against 5 mg labeled (108% of label). Endotoxins: ≤0.05 EU/mL. Batch P21-5-0318. Sample source: shop-provided. Certificate of analysis attached.
Certificate of analysis
Other lots of P21 (P021) from americanpeptides.us
| Lot | Tested | Lab | Purity | vs label | Status |
|---|---|---|---|---|---|
| P21-5-0318 | 17 Jun 2026 | Bioviridian | 99.8% | 105% | Unverified |
Batches this shop has published a certificate for, newest first. A lot whose printed value cannot identify a batch is not listed.
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