What is the BPC + TB Blend?
The BPC + TB Blend combines two of the best-known regeneration peptides in one vial: BPC-157 and TB-500 (thymosin beta-4). You also find both individually in the lexicon. It is probably the most common healing stack in the scene.
The 10mg vial holds half of each (5mg BPC + 5mg TB), the 20mg vial accordingly 10+10.
Comparison
BPC-157 and TB-500 alone and blended
The blend next to the single compounds and the three-way blend with KPV, as stated in the TPD lexicon. Tap a card to open its entry.
Simplified: in the only study of both together (rats) the combination added no benefit over either alone. 2
How it works
The two peptides act at different points of healing: BPC-157 acts more on the structural repair of connective tissue (tendons, ligaments, gastrointestinal tract), TB-500 more on cell migration and new vessel formation. Together they cover different phases of the healing cascade.
The mechanisms in detail are in the individual entries for BPC-157 and TB-500.
Where it acts
Components and where they act
Tap a point or a card. Colour = component. Almost all sites from animal studies on the single compound.
- Achilles tendon
Better tendon tissue on their own, above all with TB-500, no added benefit together (rats)2
BPC-157TB-500 - Skin and wounds
Thymosin beta-4 sped up wound closure by up to 61 percent (rats)4
TB-500 - Blood vessels
BPC-157 promoted new vessels via VEGFR2 (cells and rats)8
BPC-157 - Stomach and gut
BPC-157 protected the mucosa and closed fistulas (rats)9
BPC-157 - Heart
Thymosin beta-4 was given into a vein in phase 2 after heart attack (registry)13
Observed in trials
Known targets8
Compound CHEMBL4297358: two described targets, type of action on each card.
- Gene
- ACTB
- UniProt
- P60709
- ChEMBL
- CHEMBL2062353
- Action
- Thymosin beta-4 binds free actin via the LKKTETQ motif (Philp 2003)
What you need
Supplies
2 things, numbered as in the picture
Tick off what you already have. Vial and BAC water are our real shop photos at the same size.
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Blend vial
The blend vial (lyophilized powder, both compounds).
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Water and supplies
Bacteriostatic water, U-100 insulin syringes, alcohol swabs.
Reconstitution
Use the peptide calculator. The values refer to the total amount in the vial. A 10mg vial with 2ml water gives 5mg per ml, 0.5mg total is then 10 units on the U-100 syringe. Just add the water to the vial and let it dissolve.
Step by step
Dissolving the powder
Four steps, the same for every vial size.
- 1Wipe the cap
Clean the rubber stopper with an alcohol swab.
- 2Add BAC water
Just add it, it does not matter if it hits the powder directly.
- 3Swirl or shake
Until everything has dissolved, both are fine.
- 4Draw up
With the U-100 insulin syringe.
Dosing
Dosing
Dosing, titration and syringe
Loading the dosing information …
- Getting started and stepping up, drawn as a staircase
- Units on the U-100 syringe for every step
- How long one vial lasts
Injection
The injection is subcutaneous, into the fat layer under the skin. Common spots are the abdomen (keep about two finger-widths clear of the navel), the front and the inner side of the thigh, or the back of the upper arm.
The short version:
Injection
Where and at what angle
Pick a spot or switch the angle. Subcutaneous means: into the fat layer, not the muscle.
Rotate the spot each time, never the same one twice in a row.
Rule of thumb: where there is more fat under the skin, insert straight at 90 degrees. In lean people with little fat, 45 degrees, so the needle stays in the fat layer. Simplified diagram.
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Clean the spot with an alcohol swab and let it dry
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Pinch up a small fold of skin
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Insert the needle: at 90 degrees where there is more fat under the skin, at 45 degrees in lean people with little fat
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Inject slowly, wait a moment, then withdraw
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Put the needle straight into the sharps container
Rotate the site each time so the tissue does not get irritated. Never the same spot twice in a row.
It is often injected near the affected region.
What the research shows
Both components are individually well described preclinically (thymosin beta-4: Crockford, 2010). For the fixed combination in humans there are no controlled studies, the benefit derives from the complementary mechanisms of the individual compounds. Honestly: this is experience- and mechanism-based, not study-proven for this exact mix.
Study results
What the trials measured
Interactive: switch tabs, tap points, show or hide arms. Arms are named relative to each other, no dosing advice.
Wound healing with thymosin beta-4 in rats4
More than in the saline control group, applied to the skin or into the abdominal cavity
Study with full thymosin beta-4, not with the blend. The wounds also showed more collagen and more new vessels.
Where the knowledge on BPC-157 comes from11
Share of the 36 studies in a systematic review (literature up to June 2024)
The only human study in the review was a retrospective analysis of knee injections.
Participants by route12
All three published human studies on BPC-157 (review, search up to June 2026)
None of the studies had a control group and none tested the blend with TB-500.
Research status
Where the research stands
There is no study on the blend. Shown are registered trials on the single components. Thymosin beta-4 reached phase 3 as eye drops, which is not listed here. As of 26 Oct 2026. 13
- Preclinical Both together only in one rat study, without added benefit
- Phase 1 3 trials on components, 2 completed
- Phase 2 5 trials on components, 4 completed
- Phase 3 no registered trial
- Approval not yet
Show all 6 trials on a timelineHide timeline
NCT00382174 · 72 participants, started May 2006, primary endpoint reached Dec 2008.
Registry entry ↗ · Results not yet in PubMed
NCT00832091 · 72 participants, started Jul 2006, primary endpoint reached Jan 2009.
Registry entry ↗ · Results not yet in PubMed
NCT05485818 · 62 participants, started Nov 2020, primary endpoint reached Sept 2021.
Registry entry ↗ · Results not yet in PubMed
NCT05984134 · 90 participants, started Jul 2022, primary endpoint reached May 2023.
Registry entry ↗ · Results not yet in PubMed
NCT07586865 · 189 participants (planned), started May 2026, primary endpoint planned Aug 2027.
NCT07752381 · 40 participants, started Sept 2025, primary endpoint reached Nov 2025.
Registry entry ↗ · Results not yet in PubMed
Bar: start to primary endpoint (planned for running trials). Green = completed, blue = progress until 26 Oct 2026. Phase 1: 3 trials on safety and pharmacokinetics, not shown as bars.
Side effects
- Generally well tolerated, mainly local reactions at the injection site.
- Solid long-term human data are missing.
- As with regenerative factors, a growth-promoting signal is theoretically critical with pre-existing growths.
Tolerability
Side effects in the human studies on BPC-157
Out of 100 participants, how many had a treatment-related side effect. Three small BPC-157 studies without placebo, none with the blend.
| Event | Participants |
|---|---|
| Treatment-related side effects12 | 0% |
Zero does not mean safe here. 40 healthy people tolerated thymosin beta-4 into a vein without serious side effects. There are no data on the blend.126
Storage
Before mixing the powder is robust, normal room temperature (around 20 to 25 degrees) is fine, ideally kept in the dark. After mixing, keep in the fridge (2 to 8 degrees), do not freeze. It stays good there for at least 4 to 6 months with barely any loss of potency, in practice considerably longer. Swirl or shake to mix, both are fine.
Shelf life
How long it keeps
Robust, no fridge needed.
At least 4 to 6 months with barely any loss of potency. The bacteriostatic water brings a preservative.
- Keep it dark
- Dissolved: 2 to 8 degrees
- Note the mixing date on the vial