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DongCheng Peptide

Publishes 2 independent COAs from 1 lab across 2 peptides; latest Apr 2026.

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Catalog

30 peptides carried

Every (peptide, SKU) this vendor lists. Click through for the listing detail and any COAs we have for that exact pair.

Certificates of analysis

2 COAs across 2 peptides

Independent third-party test coverage, summarised per peptide. Each health bar is coloured by that peptide's median measured purity.

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COA source ✓ Lab-direct — from the testing lab directly ✓ Vendor-published — from the vendor's own storefront Aggregated — from Disclosed Labs, a third-party directory What COAs can and can't tell you →

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