BPC-157 dosage calculator & reconstitution guide
TL;DR
A typical BPC-157 research protocol is 250–500 mcg per dose, 1–2 times daily, for a 4–8 week cycle. To reconstitute a 10 mg vial with 2 mL of bacteriostatic water you get a 5 mg/mL concentration — a 250 mcg dose equals 0.05 mL or 5 units on a 0.5 mL insulin syringe.
Quick math: mg ÷ mL = concentration. Dose mcg ÷ 1,000 ÷ concentration = mL. mL × 100 = insulin units.
BPC-157 Dosage Calculator
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BPC-157 quick reference
What is BPC-157?
BPC-157 (Body Protection Compound 157) is a 15-amino-acid synthetic peptide derived from a protective protein found in human gastric juice. It's studied extensively in animal research for its effects on soft-tissue healing — tendons, ligaments, muscle, gut lining, and blood vessels. The peptide is stable in stomach acid (uncommon for peptides), which makes both oral and subcutaneous routes viable in research settings.
What is the standard BPC-157 dose?
The most commonly cited research dose ranges from 200 to 500 mcg per dose, administered 1 to 2 times daily. Many protocols use 250 mcg twice daily (500 mcg/day total) as the standard, with 500 mcg twice daily (1,000 mcg/day) used for more severe injury protocols.
Maintenance / mild
Once daily · 4 week cycle · general recovery support
Standard
Twice daily · 4–6 week cycle · most common protocol
Injury / aggressive
Twice daily · 6–8 week cycle · acute soft-tissue injury
Gut-focused (oral)
Once daily oral · 4–8 weeks · GI lining support
How do I reconstitute BPC-157?
BPC-157 ships as a lyophilized (freeze-dried) white powder. You mix it with bacteriostatic water (0.9% benzyl alcohol) before use. The amount of water you add determines your concentration — and how easy your doses are to measure.
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Wipe both vial stoppers with alcohol
Use a fresh 70% isopropyl prep pad on the rubber septum of both the BPC-157 vial and the bacteriostatic water vial. Air-dry 10 seconds.
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Draw your bacteriostatic water
Use a 3 mL syringe with a drawing needle to pull the calculated volume (2 mL is the most common starting point — use the calculator above).
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Inject down the inside wall of the vial
Angle the needle so water trickles down the glass — not directly onto the powder. Direct stream causes foaming and can damage BPC-157.
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Swirl gently for 20–30 seconds
Roll the vial between your palms until fully dissolved. Never shake — agitation denatures BPC-157.
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Inspect the solution
It should be completely clear and colorless. Any cloudiness, particles, or yellow tint means the peptide is degraded or contaminated — discard.
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Label and refrigerate immediately
Write the reconstitution date and concentration on the vial. Store at 2–8°C (36–46°F). Use within 30 days.
How much bacteriostatic water do I add to a BPC-157 vial?
The answer depends on the vial size, your typical dose, and which insulin syringe you use. Here are the most common combinations:
| Vial | BAC water | Concentration | 250 mcg = | 500 mcg = |
|---|---|---|---|---|
| 5 mg | 1 mL | 5 mg/mL | 5 units | 10 units |
| 5 mg | 2 mL | 2.5 mg/mL | 10 units | 20 units |
| 5 mg | 2.5 mL | 2 mg/mL | 12.5 units | 25 units |
| 10 mg | 1 mL | 10 mg/mL | 2.5 units | 5 units |
| 10 mg | 2 mL | 5 mg/mL | 5 units | 10 units |
| 10 mg | 3 mL | 3.33 mg/mL | 7.5 units | 15 units |
| 10 mg | 5 mL | 2 mg/mL | 12.5 units | 25 units |
Where do I inject BPC-157?
BPC-157 has two main administration routes in research:
| Route | How | Best for |
|---|---|---|
| Subcutaneous (Sub-Q) | 29–31 G insulin needle into the fatty layer just under the skin — abdomen, thigh, or directly near the injury site | Systemic effects, soft-tissue healing |
| Intramuscular (IM) near injury | Same needle, deeper injection into the muscle close to the injured area | Localized tendon, ligament, or muscle injuries |
| Oral | Drawn into a syringe and swallowed (no needle); BPC-157 is stable in stomach acid | Gut healing, GI inflammation, leaky gut research |
For localized injuries (tendinopathies, ligament strains), researchers commonly inject sub-Q as close to the injury site as practical to maximize local concentration. Rotation between sides or sites prevents tissue irritation over a long cycle.
How long should I cycle BPC-157?
Most published research protocols run 4–8 weeks on, followed by a 2–4 week off period. The off period is precautionary — to reset receptor sensitivity and assess whether continued use is needed. Many users run shorter 4-week cycles for general recovery and longer 8-week cycles for active soft-tissue injury rehab.
Can I stack BPC-157 with other peptides?
The most common BPC-157 stack in healing protocols is with TB-500 (Thymosin Beta-4). The two work through complementary mechanisms — BPC-157 supports angiogenesis and tendon/ligament repair, while TB-500 promotes cell migration and reduces inflammation.
| Stack | Typical doses | Use case |
|---|---|---|
| BPC-157 + TB-500 | 250 mcg BPC-157 2×/day + 2.5 mg TB-500 2×/week | Acute injury rehab |
| BPC-157 + GHK-Cu | 250 mcg BPC-157 2×/day + 1–2 mg GHK-Cu daily | Skin, hair, anti-aging research |
| BPC-157 + Ipamorelin/CJC-1295 | 250 mcg BPC-157 2×/day + 200–300 mcg combo at night | Growth-hormone-supported recovery |
Each peptide is drawn into its own syringe and injected separately (or combined in one syringe immediately before injection — never mixed in the vial for storage).
How should I store reconstituted BPC-157?
- Lyophilized (powder): Stable for 24 months at −20°C, 12 months refrigerated at 2–8°C
- Reconstituted (in BAC water): ~30 days refrigerated at 2–8°C
- Frozen aliquots: 3–6 months at −20°C in single-use vials (avoid freeze-thaw cycles)
BPC-157 is light-sensitive — keep in the original amber vial or wrap in foil. Avoid temperature swings; don't leave on the counter while drawing your dose. Pull from the fridge, draw, and return immediately.
What are common BPC-157 mistakes to avoid?
- Shaking the vial — denatures the peptide. Always swirl.
- Using sterile water instead of bacteriostatic — no preservative means contamination within 1–2 days.
- Mismatching syringe size to dose — a 1 mL syringe makes a 2.5-unit dose nearly impossible to measure accurately. Use 0.3 or 0.5 mL syringes for BPC-157.
- Storing at room temperature — accelerates degradation 5–10× vs refrigerated.
- Not labeling the vial — within a week you won't remember the concentration or reconstitution date.
- Running cycles back-to-back without breaks — the conventional 4–8 weeks on / 2–4 weeks off framework exists for a reason.
Frequently asked questions about BPC-157
What is the best BPC-157 dose for tendon injuries?
Most research protocols for tendon and ligament healing use 250–500 mcg twice daily for 4–8 weeks. For localized injuries, injection sub-Q as close to the affected tendon as practical is the standard approach. The 10 mg vial reconstituted with 2 mL of bacteriostatic water (5 mg/mL) lands a 250 mcg dose on exactly 5 insulin units, making it the most popular setup.
How long does BPC-157 take to work?
Anecdotal reports in research settings commonly describe noticeable changes within 1–2 weeks, with more substantial soft-tissue effects accumulating over 4–6 weeks. Acute inflammation responses can shift within days. Individual response varies widely and depends on the injury type, dose, frequency, and route.
Should I take BPC-157 sub-Q or orally?
Both routes are studied. Sub-Q is the standard choice for soft-tissue (tendon, muscle, ligament) and systemic effects because it delivers the peptide directly into circulation. Oral is preferred for gut-focused research — BPC-157 is unusual in being stable in stomach acid, so the peptide can act locally on the GI lining when swallowed. Some protocols combine both routes.
Can I keep BPC-157 at room temperature?
Lyophilized BPC-157 is stable for short periods at room temperature, but once reconstituted it must be refrigerated. At room temperature reconstituted BPC-157 degrades 5–10× faster than refrigerated. Brief exposure (e.g., drawing your dose) is fine, but don't leave the vial out for extended periods.
What are the side effects of BPC-157?
Animal studies have shown a remarkably clean safety profile with no observed organ toxicity at research doses, even at long-term administration. Anecdotal user reports occasionally mention mild injection-site discomfort, transient nausea, or short-lived dizziness. BPC-157 has not been approved by the FDA for human use, and there are no large-scale human clinical trials of safety or efficacy.
Is BPC-157 better with TB-500?
The BPC-157 + TB-500 stack is the most popular healing combination in research protocols. They work through complementary mechanisms — BPC-157 supports angiogenesis and tendon repair, while TB-500 (Thymosin Beta-4) supports cell migration and reduces inflammation. Typical stacking protocol: 250 mcg BPC-157 twice daily + 2.5 mg TB-500 twice weekly for 4–6 weeks.
What's the difference between BPC-157 acetate and arginate salt?
BPC-157 is most commonly sold as the acetate salt — well-studied, water-soluble, and the form used in most published research. BPC-157 arginate is a newer salt form claimed to be more stable in the bloodstream, particularly for oral administration, though comparative research is limited. Both reconstitute and dose identically.