BPC 157 - British Dragon

Buy BPC 157 5 mg vials by British Dragon at XSteroids. BPC 157 is the synthetic repair peptide that research has studied for tendon, gut and soft tissue healing, supplied by British Dragon as a lyophilized 5 mg vial that is dissolved before use. This page covers what it is, what the human evidence actually shows, how a 5 mg vial calculates and how to store it.

BPC 157 has no approval from any regulator; sold here it is a research product and the notes below are educational.

What BPC 157 Is

BPC 157 stands for Body Protection Compound 157, a synthetic peptide built from 15 amino acids - a pentadecapeptide - derived from a protein found in human gastric juice. The sequence, Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val, is short enough to be made synthetically and is stable in that form. In preclinical models it shows cytoprotective, neuroprotective and anti-inflammatory activity and speeds the healing of tissues and organs.

The practical part is the size. At 1419.6 g/mol the peptide is a small molecule by peptide standards, which is why research work uses microgram amounts rather than milligrams.

What the Human Data Actually Shows

This is the honest section most product pages skip. A 2025 systematic review screened 544 articles and included 36 studies - 35 of them preclinical and exactly one clinical. A phase I trial in healthy volunteers was run but the results were never published. The single retrospective report followed 12 patients given 4 mg into the knee for chronic pain, and 11 of those 12 improved significantly while one did not.

So the mechanism story is strong and the human dataset is thin. BPC 157 has been shown to raise growth hormone receptor expression and several cell growth and angiogenesis pathways, and to lower pro-inflammatory cytokines, in animal work. A buyer should hold both halves of that sentence at the same time.

How a 5 mg Vial Calculates

The maths depends on the water you add. With 2 ml of bacteriostatic water the vial holds 2.5 mg per ml, which is 2500 mcg per ml; on a U-100 syringe 0.1 ml is 10 units, so 10 units is 250 mcg. With 1 ml of water the vial is 5 mg per ml and the same 0.1 ml draws 500 mcg.

• 5 mg + 2 ml = 2500 mcg/ml, so 0.1 ml = 250 mcg
• 5 mg + 1 ml = 5000 mcg/ml, so 0.1 ml = 500 mcg
• At 250 mcg a day one vial lasts 20 days
• At 500 mcg a day one vial lasts 10 days

The vendor research range is 250 to 500 mcg per day, subcutaneously or intramuscularly, over cycles of 2 to 6 weeks. There is no approved label for BPC 157, so these are research conventions and not a dosing instruction.

Oral or Injection

BPC 157 is unusual among peptides because it survives the gut: it stays intact in human gastric juice for more than 24 hours, and oral use appears in the research literature alongside injection. It is also stable at room temperature and detectable in urine for 4 days. That stability is a real difference from most peptides in this catalogue and one of the reasons BPC 157 gets discussed separately from TB 500, which is built around systemic injection.

BPC 157 vs TB 500

Both sit in the repair group and are normally discussed together. TB 500 is the systemic agent, dosed so that it acts across the body rather than at the site of an injury. BPC 157 is more often described as a local, site-focused agent. No head-to-head human study compares the two, so that split describes how they are used rather than a proven ranking.

Storage and Reconstitution

Keep the lyophilized powder at 15 to 25 C, or in the fridge at 2 to 8 C for longer storage, and never freeze the powder. Once dissolved, keep the solution at 2 to 8 C and use it within 30 days; avoid repeat freeze-thaw cycles and discard a cloudy solution. The brand gives this as a general rule for its lyophilized peptides.

Side Effects and Legal Status

Serious adverse events are rare in the literature and the profile is described as favourable. The vendor notes possible temporary irritation at the injection site or dizziness, and no known hormonal suppression. Because the peptide promotes angiogenesis, a theoretical question about tumour promotion remains open. In New Zealand and Australia BPC 157 is classed as a prescription medicine while being effectively unavailable on prescription, and WADA prohibits it in sport under class S0.

Other Repair Peptides in the Line

The same brand carries GHK-Cu 50 mg for skin and connective tissue research, Ipamorelin and Sermorelin for growth hormone release, and Somatropin (HGH) where the growth hormone itself is the subject.

Why Buy BPC 157 from XSteroids?

British Dragon peptides come straight from the brand catalogue, with secure checkout, US domestic delivery in 3 to 6 days and international delivery in 12 to 26 days. The full range sits on the British Dragon page if you want to build a research set around this vial.