Every BPC-157 + GHK-Cu COA we've seen

Cross-vendor view of every Certificate of Analysis for BPC-157 + GHK-Cu: purity distribution, test coverage gaps, recent batches. Sourced back to the original COAs.

Open methodology Lab-verified only No paid placements

COAs ingested

Vendors

—

Avg purity

50%

Endotoxin tested

Tested by

Janoshik Analytical2 COAsA

Purity over time

Each dot is one COA. Color = vendor. The dashed line is a recency-weighted rolling mean (6-month half-life) — it tells you whether testing is trending up or down across the corpus, independent of which vendors happen to have published most recently. Tightly clustered points across many vendors = either real consistency or rubber-stamping; check the individual labs.

Not enough data points to chart yet (need 2+ extracted COAs with both a tested date and a purity result).

By vendor

Vendor	COAs	Avg purity	MS	Endotoxin	Sterility	Metals	Latest
Skye Peptides	2	—	—

Recent batches

Vendor	Lab	Lot	Purity	Tested
Skye Peptides	Janoshik Analytical	GN26-60-001	—	2026-04-10	View
Skye Peptides	Janoshik Analytical	GN25-60-001	—	2025-11-07	View