Important Disclaimer
BPC-157 has no officially established human dosage. There are no completed human clinical trials. All dosing information below is derived from allometric scaling of animal study doses and from anecdotal reports in online communities and peptide clinics. This information is for educational purposes only and is not medical advice. Consult a qualified healthcare professional before considering any peptide.
General Dosing Ranges
The most commonly reported BPC-157 dose in the self-experimentation community falls between 200 and 800 micrograms (mcg) per day. This range is based on allometric scaling from animal studies, where researchers use body surface area ratios to estimate a human-equivalent dose from the amounts used in rodents.
Weight-based dosing is sometimes discussed, with a rough guideline of approximately 3-10 mcg per kilogram of body weight. For a 75kg individual, that translates to 225-750 mcg/day — broadly consistent with the flat ranges above.
How to Reconstitute BPC-157
BPC-157 is typically sold as a lyophilized (freeze-dried) powder in vials, usually containing 5mg of peptide. Before use, it must be reconstituted with bacteriostatic water (BAC water). Here is the process.
Step-by-step reconstitution
1. Gather supplies: BPC-157 vial (5mg), bacteriostatic water, insulin syringes (1ml/100 units), alcohol swabs.
2. Clean both vial stoppers with alcohol swabs and let dry.
3. Draw bacteriostatic water into the syringe. The amount you add determines the concentration. With 2ml of BAC water into a 5mg vial, each 0.1ml (10 units on an insulin syringe) contains 250mcg.
4. Inject the water slowly into the BPC-157 vial, aiming the stream at the glass wall — not directly onto the powder. This prevents damage to the peptide.
5. Swirl gently until fully dissolved. Never shake.
6. Refrigerate the reconstituted vial at 2-8°C. Use within 3-4 weeks.
Concentration reference
| BAC Water Added | Concentration | 250mcg Dose = | 500mcg Dose = |
|---|---|---|---|
| 1 ml | 5,000 mcg/ml | 5 units (0.05 ml) | 10 units (0.10 ml) |
| 2 ml | 2,500 mcg/ml | 10 units (0.10 ml) | 20 units (0.20 ml) |
| 2.5 ml | 2,000 mcg/ml | 12.5 units (0.125 ml) | 25 units (0.25 ml) |
Adding 2ml of BAC water to a 5mg vial is the most practical option. It gives you easy-to-measure doses (10 units = 250mcg) and 20 doses per vial at 250mcg. This is the most common approach in practice.
Injection Protocol
Subcutaneous injection is the most common administration route for BPC-157. It provides consistent delivery and is considered the most reliable method for systemic or localized use.
Injection sites
For targeted use: Inject subcutaneously as close to the injury as practical. For a knee tendon issue, inject in the subcutaneous tissue around the knee. For a shoulder injury, inject near the deltoid or shoulder area. The peptide doesn't need to be injected directly into the tendon — nearby subcutaneous tissue is sufficient.
For systemic or gut use: Inject subcutaneously in the abdominal fat pad, rotating injection sites. This is also the default for users who don't have a specific localized injury.
Injection technique
Clean the injection site with an alcohol swab. Pinch a fold of skin. Insert the needle at a 45-degree angle. Inject slowly, then withdraw. Apply gentle pressure with a clean swab if needed.
Use 29-31 gauge insulin syringes (1ml). These are small enough to be virtually painless for subcutaneous injections.
Oral Protocol
BPC-157 is one of the few peptides with evidence for oral bioactivity. This makes sense given its origin in gastric juice — it was literally designed by evolution to function in the stomach.
Oral BPC-157 may be especially relevant for gastrointestinal issues including gastric ulcers, intestinal inflammation (IBD/IBS), leaky gut symptoms, and NSAID-induced gut damage. Some researchers believe the oral route provides more localized GI benefit, while injection offers more systemic distribution.
BPC-157 oral capsules are available from some suppliers. Alternatively, some users drink the reconstituted injectable form — though this is an off-label approach and the taste is described as "mildly salty and neutral."
Nasal Spray Protocol
Nasal administration is the least studied route for BPC-157 but is gaining popularity for its convenience and potential for rapid onset. The nasal mucosa is highly vascularized, theoretically allowing quick absorption into the bloodstream.
Some users prefer nasal delivery for potential neurological effects, reasoning that intranasal delivery can bypass the blood-brain barrier to some degree. This is plausible based on how other nasal peptide drugs work (e.g., intranasal oxytocin or vasopressin), but it hasn't been specifically studied for BPC-157.
Cycling & Duration
There is no clinical guidance on BPC-157 cycle length. The following protocols are based on common patterns in the user community.
Standard cycle
4 to 8 weeks of daily dosing, followed by an equal period off. This is the most commonly reported approach. The rationale for cycling is to avoid potential receptor desensitization, though there's no evidence this actually occurs with BPC-157.
Extended use
Some users, particularly those using BPC-157 for gut support, report running longer cycles of 12 weeks or more. Others take it intermittently on an as-needed basis. Without long-term safety data, the risks of extended use are unknown.
Stacking cycles
When running the Wolverine Stack (BPC-157 + TB-500), the typical approach is to align the BPC-157 cycle with the TB-500 loading and maintenance phases. See the Wolverine Stack guide for the specific protocol structure.
Dose Calculation
The math behind peptide dosing can be confusing, especially when converting between milligrams, micrograms, and syringe units. Here is a simple formula.
Units to draw = (Desired dose in mcg ÷ Concentration per ml) × 100
Example: You want 250 mcg from a 5mg vial reconstituted with 2ml BAC water. Concentration = 5000 mcg / 2 ml = 2500 mcg/ml. Units to draw = (250 / 2500) × 100 = 10 units.
Alternatively, just remember these practical shortcuts: with 2ml BAC water in a 5mg vial, every 1 unit on the syringe = 25 mcg. So 10 units = 250 mcg, 20 units = 500 mcg.
FAQ
Should I take BPC-157 on an empty stomach?
For oral dosing, an empty stomach (30 minutes before food) is generally recommended for better absorption. For injections, stomach contents don't matter since the peptide bypasses the GI tract entirely.
Can I take BPC-157 with other supplements?
No interactions with common supplements have been reported. Some users combine it with collagen peptides or joint supplements under the theory that providing raw materials alongside a healing signal is logical. This hasn't been studied.
What happens if I miss a dose?
Given that BPC-157's effects appear to be cumulative rather than acute, missing a single dose is unlikely to matter. Simply resume your normal dosing schedule. There's no need to "double up."
How should I store BPC-157?
Unreconstituted (powder): Store in a cool, dry, dark place. Refrigeration extends shelf life but isn't strictly necessary for short-term storage. Reconstituted (mixed with BAC water): Must be refrigerated at 2-8°C. Use within 3-4 weeks. Do not freeze reconstituted peptides. Keep away from direct light.
Can I travel with BPC-157?
This is a legal gray area. BPC-157 is not a controlled substance in most countries, but carrying an unlabeled vial of powder or liquid through airport security can raise questions. See our peptide legality guide for more context on the regulatory landscape.