Research use only · Not for human or veterinary useFor laboratory research use only. Not a medicine. Not for human or veterinary use.

COA

Certificates

Supplier certificates matched to a compound and an amount. They describe the supplier's batches, not a Rierink lot.

These certificates come from our supplier and relate to the supplier's batches. They are not Rierink's own independent tests of the exact vial you receive. Every Rierink vial carries our own internal lot number, and independent testing of our own lots is underway; results will be published per lot. We welcome independent testing: any customer or lab is free to test our products, and we're happy to share results sent to us.

GHK-Cu · 50 mg

Compound: GHK-Cu
Amount: 50 mg
Task number: 212677
Verification key: 7L629ITP359J
Purity: 99.659%
Measured content: 53.26 mg GHK-Cu (GHK 44.94 mg; copper 8.32 mg)

Verify on Janoshik

Verified on janoshik.com/verification as a genuine Janoshik report for the sample tested; not a test of a Rierink lot.

KPV · 10 mg

Compound: KPV
Amount: 10 mg
Purity: 99.22%
Measured content: 10.88 mg

Supplier certificate – KPV 10 mg

Supplier-issued; cannot be independently verified.

Melanotan II · 10 mg

Compound: Melanotan II
Amount: 10 mg
Purity: 99.18%
Measured content: 11.52 mg

Supplier certificate – Melanotan II 10 mg

Supplier-issued; cannot be independently verified.

PT-141 · 10 mg

Compound: PT-141
Amount: 10 mg
Purity: 99.59%
Measured content: 11.58 mg

Supplier certificate – PT-141 10 mg

Supplier-issued; cannot be independently verified.

Retatrutide · 20 mg

Compound: Retatrutide
Amount: 20 mg
Task number: 223860
Verification key: 2JXK17H8SDHQ
Purity: 99.865%
Measured content: 19.86 mg

Verify on Janoshik

Verified on janoshik.com/verification as a genuine Janoshik report for the sample tested; not a test of a Rierink lot.

Retatrutide · 60 mg

Compound: Retatrutide
Amount: 60 mg
Purity: 99.87%
Measured content: 60.73 mg

Supplier certificate – Retatrutide 60 mg

Supplier-issued; cannot be independently verified.

Selank · 10 mg

Compound: Selank
Amount: 10 mg
Purity: 99.85%
Measured content: 10.43 mg

Supplier certificate – Selank 10 mg

Supplier-issued; cannot be independently verified.

Survodutide · 10 mg

Compound: Survodutide
Amount: 10 mg
Purity: 99.81%
Measured content: 11.36 mg

Supplier certificate – Survodutide 10 mg

Supplier certificate – Survodutide 10 mg

Supplier-issued; cannot be independently verified.

Tirzepatide · 10 mg

Compound: Tirzepatide
Amount: 10 mg
Task number: 212670
Verification key: 8HSJNAXXWGHX
Purity: 99.637%
Measured content: 10.02 mg

Verify on Janoshik

Verified on janoshik.com/verification as a genuine Janoshik report for the sample tested; not a test of a Rierink lot.