BPC-157 & TB-500 UK — The Complete Research Stack Guide

BPC-157 (Body Protection Compound 157) is a synthetic pentadecapeptide — fifteen amino acids — corresponding to a partial sequence of a protective protein identified in human gastric juice. Unusually for a peptide, it shows notable stability in gastric acid, which is why both oral and injectable routes appear in the preclinical literature.

• Sequence length: 15 amino acids (pentadecapeptide)
• Origin: partial sequence of body protection compound, found in gastric juice
• Research pathways: angiogenesis via VEGFR2 signalling, fibroblast migration, growth-factor expression
• Typical supply: 5mg or 10mg lyophilised vial

TB-500 is a synthetic peptide reproducing the active actin-binding region of Thymosin Beta-4, a 43-amino-acid protein present in most human cells and found in high concentration in wound fluid and platelets. The fragment is easier to synthesise and more stable than the full protein while retaining the property of research interest.

• Origin: active fragment of Thymosin Beta-4 (not the complete protein)
• Research pathways: actin sequestration, cell migration, angiogenesis, inflammatory signalling
• Typical supply: 5mg or 10mg lyophilised vial
• Longer systemic persistence than BPC-157 in published animal models

The clearest way to separate them is by what part of the repair process each one is studied against. BPC-157 sits on the vascular and signalling side — new vessel formation and growth-factor expression. TB-500 sits on the cytoskeletal side — actin regulation, which governs how readily cells change shape and migrate to a site.

• BPC-157 — vascular and growth-factor signalling (VEGFR2, fibroblast activity)
• TB-500 — cytoskeletal regulation and cell motility (actin sequestration)
• Overlap — both are associated with angiogenesis, from different directions
• Why stacked — the pathways intersect rather than duplicate

Almost all of this is animal and in vitro work. Human clinical data for both peptides is very limited, and any supplier stating defined outcomes is going beyond the published evidence.

Both peptides arrive as a white lyophilised cake. They are reconstituted separately — never combined into a single vial — so that each concentration is known and each batch stays traceable to its own Certificate of Analysis.

• Wipe both stoppers with an alcohol swab and let them dry.
• Draw bacteriostatic water and add it slowly down the inside wall of the vial.
• Swirl gently until the cake dissolves and the solution runs clear. Never shake.
• Label each vial with the compound, concentration and reconstitution date.
• Refrigerate at 2–8°C, away from light, and use within 28 days.

A 5mg vial reconstituted with 2ml of bacteriostatic water gives 2.5mg/ml; the same vial with 3ml gives roughly 1.67mg/ml. Rather than working from a fixed chart, put your own vial size and target volume into the free peptide calculator — it returns the exact syringe units for the concentration you have actually made.

Lyophilised vials are stable at ambient temperature during transit, which is why cold-chain shipping is not required — but they should go into the fridge as soon as they arrive. Once bacteriostatic water is added, the clock starts.

• Unopened lyophilised: refrigerate at 2–8°C; long shelf life, protect from light.
• Reconstituted: 2–8°C, use within 28 days.
• Never freeze a reconstituted vial — ice crystal formation damages the peptide.
• Never shake — agitation shears the chain and can cloud the solution.
• Discard any vial that has gone cloudy, discoloured or shows particulate.

Tissue-repair peptides are among the most widely counterfeited on the grey market, so batch verification matters more here than almost anywhere else. Every stack we supply is independently HPLC and mass-spec tested, and the batch number printed on the vial matches a published Certificate of Analysis.

You can check the batch against the published document on our Certificates of Analysis page before the vial is opened. If a supplier cannot show a batch-matched COA, treat the purity claim as unverified.

BPC-157 and TB-500 are legal to buy and possess in the UK for laboratory research purposes. Neither is a licensed medicine in the UK, neither is available on the NHS, and neither is approved for human use anywhere in Europe or the United States.

Everything supplied here is sold strictly for in vitro research use only. Purchase requires confirmation that you are over 18 and that the material will be used for research purposes.

• UK-held stock — same working day dispatch on orders before 2pm, Mon–Fri.
• Royal Mail Tracked 24 with photo confirmation on every parcel.
• Independent HPLC and mass-spec testing with a batch-matched Certificate of Analysis.
• Discreet plain packaging and normal UK card checkout — no crypto required.
• Free 4 needles + 4 alcohol swabs with every vial — opt in at checkout.

• BPC-157 individual guide
• TB-500 individual guide
• Peptide reconstitution guide
• Free peptide calculator
• All peptide guides