BPC-157

Onyx Research carries BPC-157 in 5mg and 10mg vials. Each holds peptide as dry freeze-dried powder, and BPC-157 is a synthetic pentadecapeptide. It’s sold for laboratory research only.

BPC-157 purity and COA

Onyx Research sends BPC-157 to Freedom Diagnostics, a testing lab in the United States, which runs HPLC with UV detection coupled with mass spectrometry. HPLC measures purity and mass spec confirms the molecule’s identity. The report is in the product photos above.

• BPC157 5mg: 99.627% purity, reported 11/24/2025, search code Onyx2511200077

Want to verify it? Each search code above opens the original report on the Freedom Diagnostics site. The best figure on file is 99.627%.

About BPC-157

BPC-157 is a 15-amino-acid peptide based on a fragment of body protection compound, a protein first found in gastric juice. It’s one of the most widely studied research peptides, almost entirely in rodents.

It isn’t an approved drug in the US or Europe, and it’s on the WADA prohibited list.

Mechanism of action

Nobody has pinned down a single receptor for the peptide. Lab studies point to several pathways: it raises VEGF receptor expression, which feeds blood vessel growth, it interacts with the nitric oxide system, and it increases growth hormone receptor levels in tendon cells.

In cell culture it helped fibroblasts move and spread, which is part of how tissue closes a wound. Those effects are why it shows up so often in tendon, ligament and gut repair models.

Key details

• Compound: BPC-157
• Also known as: body protection compound 15, PL 14736
• CAS number: 137525-51-0
• Molecular formula: C62H98N16O22
• Molecular weight: 1,419.5 g/mol
• Structure: Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val
• Sizes: 5mg, 10mg
• Form: lyophilized (freeze-dried) powder in a crimp-sealed glass vial
• SKU: ONYX-BPC
• Use: laboratory research only

Research findings

Most of the work comes from Predrag Sikiric’s group at the University of Zagreb. Their rodent studies report faster healing of tendon, ligament, muscle and gut injuries, and Mikus and colleagues described improved burn wound healing in mice.

Chang and colleagues reported in 2011 that the peptide raised growth hormone receptor expression in rat tendon fibroblasts. Controlled human data are very limited.

You can read the original papers through this PubMed search for BPC-157, a free database from the U.S. National Library of Medicine.

How it compares

In one line, the peptide is a 15-amino-acid gastric peptide studied for blood vessel growth and repair. The closest alternatives work differently:

• TB-500 is synthetic thymosin beta-4, the actin-binding peptide tied to cell migration

Each covers a different part of repair or immune control, from new blood vessels and cell migration to inflammation and microbial defense. Every one of them is in stock in our healing peptides.

When your order arrives

Start with the label: Onyx Research, the compound name and the amount should all match what you ordered. Then look at the seal. The crimp should be tight with no cracks in the glass.

The powder should look dry and pale, either as a solid cake or loose granules. If the cake has crumbled in the box, that’s expected. Powder that looks wet, gummy or off-color is not, so keep that vial out of use and send us a photo.

Log the date the vial arrived and, later, when and how you mixed it. It’s quick, and it saves a lot of guesswork if something goes wrong.

Reconstitution chart and steps

These figures use the 5mg vial. For a bigger vial, multiply by the size difference.

• Add 1mL: 5mg/mL (500mcg per 0.1mL, or 10 units on a U-100 syringe)
• Add 2mL: 2.5mg/mL (250mcg per 0.1mL, or 10 units on a U-100 syringe)
• Add 3mL: 1.67mg/mL (166.7mcg per 0.1mL, or 10 units on a U-100 syringe)

Bring the vial up to room temperature and clean the stopper with an alcohol pad. Inject the bacteriostatic water against the glass wall, not onto the powder, and swirl slowly until it’s clear. Shaking whips up foam and can damage the chain.

Keeping the vial stable

Two rules cover the peptide storage: powder in the freezer, solution in the fridge. Keep both away from light and damp, since those break freeze-dried peptides down fastest.

Let a frozen vial come up to room temperature before you open it, or condensation forms on the powder.

BPC-157 options and prices

Both options are on this page. Choose one from the option menu above the cart button:

• 5mg: $45.00
• 10mg: $64.00

The 10mg size works out cheapest per milligram, at about $6.40 per mg against $9.00 for the 5mg. The small vial is the better pick for a pilot run.

Often bought with it

• TB-500 10mg, a thymosin beta-4 peptide
• GLOW Blend 70mg (GHK-Cu, BPC-157, TB-500): GHK-Cu, BPC-157 and TB-500 in one vial
• KLOW Blend 80mg (GHK-Cu, KPV, BPC-157, TB-500): GHK-Cu, KPV, BPC-157 and TB-500 in one vial
• Wolverine Blend 10mg (BPC-157 and TB-500): BPC-157 and TB-500 in one vial
• DSIP 5mg, a neuropeptide

See everything in our healing peptides, or start from the Onyx Research home page to browse every category.

Questions people ask

How much is in a BPC-157 vial?

5mg and 10mg, depending on the size you pick.

Which diluent should I use?

Bacteriostatic water in most cases. Our mixing chart above shows the concentration for 1, 2 or 3mL.

What’s the right way to store it?

Keep sealed vials frozen. Once you’ve added water, refrigerate it and plan to finish it within 28 days or so.

Is it for human use?

No. Onyx Research sells it strictly for lab research, never for people or animals.

Is there a crypto discount?

Yes. Pay with cryptocurrency at checkout and an extra discount comes off your order.

Order BPC-157 online

BPC-157 is in stock from $45.00. Choose your option and add it to the cart, and your order ships free, wherever you are.

Choose cryptocurrency at checkout and an extra discount comes off the total.

Many labs pair it with something from our healing peptides.

Research use only. Onyx Research supplies this material to qualified labs for in-vitro work. It’s not a medicine, supplement, food or cosmetic, and it must not be given to people or animals. No statement here has been reviewed by the FDA.