For laboratory research use only. Not for human consumption. All compounds referenced in this article are sold by Explicit SARMs solely as reference materials for in-vitro and animal research by qualified professionals. Nothing here is medical advice, and no statement has been evaluated by the FDA. These materials are not intended to diagnose, treat, cure or prevent any disease.
Research catalogs list BPC-157 under several names, including “BPC-157 arginate” and “BPC-157 acetate.” The peptide sequence is the same. What changes is the counter-ion that the peptide is paired with as a salt. This article explains what that means and why it matters for laboratory work.
What Is BPC-157?
BPC-157 is a synthetic 15-amino-acid peptide whose sequence is a partial fragment of a protein originally isolated from gastric juice, often called “body protection compound.” Like most synthetic peptides, it is isolated as a salt rather than as a free molecule. The salt form depends on how the peptide was purified and finished.
Acetate and Arginate Salts
Acetate is the most common counter-ion for research peptides. In the arginate form, the peptide is paired with arginine instead. It is often marketed as more stable, especially in solution. Treat claims about how one salt form behaves differently in a biological system as unverified unless they come with direct comparative data.
Why the Salt Form Matters
- Mass calculations: the counter-ion contributes to the weighed mass. Molar calculations should use the molecular weight of the form you actually have.
- Comparability: results obtained with one salt form shouldn’t be pooled with results from another without noting the difference.
- Documentation: the COA should state which form the lot is. If it doesn’t, ask.
Choosing Material
Explicit SARMs supplies BPC-157 5mg and BPC-157 20mg as lyophilized powder, and BPC-157 in capsule format as BPC-157 Capsules (30ct), strictly as laboratory reference material. A certificate of analysis is available on request through our contact page, and our products are purity-tested by an independent third-party lab. Our guide to reading a COA explains what each section of the report should contain.
For the broader BPC-157 literature, see our BPC-157 research overview.
Frequently Asked Questions
Is BPC-157 arginate a different peptide?
No. It is the same peptide sequence paired with a different counter-ion.
Is BPC-157 approved for human use?
No. It is sold strictly for laboratory research, and we do not provide dosing, administration or usage guidance. BPC-157 appears on the World Anti-Doping Agency’s prohibited list under S0 (non-approved substances).