How to Reconstitute the Wolverine Stack
The Wolverine Stack is a pre-blended vial containing 10mg BPC-157 + 10mg TB-500 — 20mg total. Reconstitution follows the same process as any lyophilized peptide: add bacteriostatic water, swirl, refrigerate. The only difference is the math. Because it is a blend, each injection delivers both peptides in a fixed 1:1 ratio without needing separate vials or syringes.
For anyone who has reconstituted BPC-157 or TB-500 individually before, this will feel familiar. For a first peptide vial, every step matters — most mistakes happen during mixing, not injection.
Research-context information only. The Wolverine stack is a research-peptide blend (containing BPC-157 and TB-500). Protocols, doses, and reactions reported below come from published research and self-reported community sources. This article reports what has been documented, not what should be done. Consult a licensed physician for personal medical decisions.
New to bacteriostatic water? Start with what it is, how much to use per vial, and how long it lasts — or see the full Bacteriostatic Water Guide.
Materials Documented in Reconstitution Protocols
Documented protocols describe gathering:
Wolverine Stack vial (20mg lyophilized powder — 10mg BPC-157 + 10mg TB-500) Bacteriostatic water (BAC water) — not sterile water, not saline Insulin syringes — 1mL (100 unit), 29-31 gauge Alcohol swabs — for cleaning vial tops before every puncture Sharps container — for safe needle disposal A clean, flat workspace
Why bacteriostatic water? It contains 0.9% benzyl alcohol that prevents bacterial growth in the solution. Regular sterile water has no preservative — vials reconstituted with it are typically discarded within 24 hours. BAC water allows up to 28 days refrigerated, which matters when a single vial lasts 40 days at standard dosing (half the vial's worth of doses is reconstituted at a time, or 2 vials are used per cycle).
Step-by-Step Reconstitution
Step 1: Clean Both Vial Tops
Standard reconstitution practice is to wipe the rubber stoppers on both the Wolverine Stack vial and the BAC water vial with separate alcohol swabs and let them air dry for 10 seconds. This step is consistently cited as the contamination-prevention checkpoint.
Step 2: Draw 2mL Bacteriostatic Water
A fresh insulin syringe (or a larger 3mL syringe for easier measurement) is used to draw 2mL of BAC water. This is the most-cited standard dilution for the 20mg Wolverine Stack vial.
2mL is the most-cited dilution. It produces clean, round numbers for every common dose — 5 units for 500mcg, 7.5 units for 750mcg. No mental math required.
Step 3: Add Water to the Vial — Slowly
Documented protocols describe inserting the needle into the Wolverine Stack vial at an angle, with the needle tip aimed at the glass wall, not at the powder cake. The water trickles down the inside wall of the vial slowly.
Squirting water directly onto the powder is discouraged in standard reconstitution practice. Both BPC-157 and TB-500 are fragile peptide chains. Aggressive force can shear molecular bonds and reduce potency. The documented technique lets gravity do the work.
Step 4: Swirl Gently — Never Shake
With the syringe removed, standard practice is to rotate the vial gently between the fingers with a slow swirling motion. The powder is documented to dissolve within 1-3 minutes into a perfectly clear, colorless solution.
Shaking is discouraged. Shaking creates foam — air bubbles trapped against peptide molecules at the liquid-air interface. This can denature (permanently destroy) both peptides. Foam is a sign the mixing was too aggressive.
Particles remaining after 5 minutes of gentle swirling are commonly cited as a sign the peptide may be degraded. Properly manufactured Wolverine Stack dissolves easily.
Step 5: Label and Refrigerate
Documented practice is to write the date and concentration (10mg/mL or 10,000mcg/mL) on the vial with a marker or label, then refrigerate immediately at 36-46F (2-8C). The clock starts now — the vial is used within 28 days.
Dilution Chart
Why 2mL? At 10,000mcg/mL, each unit on a U-100 insulin syringe equals exactly 100mcg of total blend. The standard 500mcg dose is exactly 5 units — no fractions, no guessing.
Syringe Math Explained
The formula for verifying any dilution:
Concentration = Total Peptide (mcg) / Water Added (mL)
20,000mcg (20mg) / 2mL = 10,000mcg/mL
Units to inject = Desired Dose (mcg) / Concentration (mcg/mL) x 100
500mcg / 10,000mcg/mL x 100 = 5 units
On a U-100 insulin syringe, 1mL = 100 units. So each unit = 0.01mL. At this concentration, each unit delivers 100mcg of total blend.
Dose Units (2mL recon) Blend Delivered 250mcg 2.5 units 125mcg BPC-157 + 125mcg TB-500 500mcg 5 units 250mcg BPC-157 + 250mcg TB-500 750mcg 7.5 units 375mcg BPC-157 + 375mcg TB-500 1,000mcg 10 units 500mcg BPC-157 + 500mcg TB-500
What's in Each Dose
This is where blends differ from single peptides. The Wolverine Stack is a 1:1 ratio — half BPC-157, half TB-500. Every dose drawn contains equal parts of both peptides.
500mcg dose = 250mcg BPC-157 + 250mcg TB-500 750mcg dose = 375mcg BPC-157 + 375mcg TB-500 1,000mcg dose = 500mcg BPC-157 + 500mcg TB-500
The 500mcg daily dose (250mcg per peptide) aligns with standard standalone dosing for both BPC-157 and TB-500, so neither peptide is typically supplemented separately at this dose.
At 500mcg/day, one 20mg vial provides 40 doses — enough for 40 days. A standard 8-week (56-day) cycle requires 2 vials.
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Storage Rules
State Temperature Shelf Life Lyophilized (powder) Room temperature 6-12 months Lyophilized (powder) Refrigerated (2-8C) 2+ years Lyophilized (powder) Frozen (-20C) 3+ years Reconstituted (BAC water) Refrigerated (2-8C) Up to 28 days Reconstituted (sterile water) Refrigerated Use within 24 hours
Key storage rules documented in protocols:
Refrigerate immediately after reconstitution. Every hour at room temperature reduces potency. Reconstituted solution is not frozen. Ice crystals shear peptide bonds apart. Only lyophilized (powder) vials are frozen. Store upright. Keeps the rubber stopper from prolonged contact with the solution. Keep away from light. Direct sunlight accelerates degradation. The back of the fridge is ideal. A fresh syringe is used for every draw. Each needle puncture through the stopper introduces contamination risk. Syringes are not reused.
Documented practice: When multiple vials are purchased for an 8-week cycle, documented practice is to keep the second vial in the freezer as powder and reconstitute it only when the first vial runs out (around day 28-30).
Common Mistakes
Spraying BAC Water Directly onto the Powder
The most common error. High-pressure water hitting the lyophilized cake can denature the peptide chains. The documented technique aims at the glass wall and lets the water roll down to the powder.
Shaking the Vial
Peptides are proteins. Shaking creates foam at the air-liquid interface, which denatures molecules at the boundary. A foamy solution indicates some of the peptide has been damaged. Standard practice is to swirl gently.
Using Sterile Water Instead of BAC Water
Sterile water works for reconstitution, but it has no preservative. The entire vial must be used within 24 hours — impossible with 40 doses in a vial. BAC water's 0.9% benzyl alcohol keeps bacteria from growing for up to 28 days.
Storing at Room Temperature
Reconstituted peptides degrade rapidly above refrigerator temperature. Documented practice is to remove the vial, draw the dose, and return it rather than leaving it on the counter during injection-site prep.
Using the Same Syringe for Multiple Vials
Drawing from the BAC water vial and then inserting the same needle into the peptide vial transfers potential contaminants. Documented practice is a fresh needle for each vial when reconstituting. For daily draws from an already-reconstituted vial, a fresh insulin syringe each time is sufficient.
Wolverine Stack Blend vs. Mixing BPC-157 + TB-500 Separately
Factor Pre-Mixed Blend Separate Vials Convenience One vial, one reconstitution, one injection Two vials, two reconstitutions, two injections Cost Typically cheaper per mg of total peptide More expensive — buying two separate products Dose flexibility Fixed 1:1 ratio only Any custom ratio Local injection Both peptides go to the same site BPC-157 near injury, TB-500 anywhere (it's systemic) Storage One vial to track, one expiry date Two vials, two reconstitution dates Oral BPC-157 Not possible — TB-500 isn't orally active BPC-157 can be taken orally for gut protocols
The blend suits: a standard 1:1 protocol where simplicity matters. One injection, one vial, one set of math.
Separate vials suit: local BPC-157 injection near a specific injury, different doses of each peptide, or oral BPC-157 for gut healing. See our BPC-157 Reconstitution Guide for individual vial mixing.
Research Supplies for Wolverine Stack
Hand-picked storage, injection, and recovery supplies paired with Wolverine Stack protocols.
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Wolverine Stack Dosing: 500mcg/Day Protocol — full protocols, cycling, and injection sites Wolverine Stack Bloodwork: Panel + Ranges — markers to track Wolverine Stack Benefits: How BPC-157 + TB-500 Heal — mechanisms, synergy, and results timeline Klow Blend Reconstitution: 80mg + 2mL Chart — 4-peptide blend mixing with GHK-Cu and KPV Glow Blend Reconstitution: 70mg + 2mL Chart — 3-peptide blend mixing with GHK-Cu BPC-157 Reconstitution Guide — individual vial mixing and dilution charts Best Wolverine Stack Vendors — third-party tested vendors with current pricing Where to Buy Wolverine Stack: Price & Vendor Guide — how to verify a Wolverine vendor and compare blend vs singles cost
References
Chang, C.H., et al. (2014). Pentadecapeptide BPC 157 enhances the growth hormone receptor expression in tendon fibroblasts. Molecules, 19(11), 19066-19077. PMC6271067 Seiwerth, S., et al. (2018). BPC 157's effect on healing. Journal of Physiology-Paris, 112(1), 1-10. USP General Chapter 797: Pharmaceutical Compounding — Sterile Preparations. Storage and beyond-use dating guidelines for reconstituted peptides.
This guide is for educational and informational purposes only. It is not medical advice. The Wolverine Stack (BPC-157 + TB-500) is sold as a research compound and is not FDA-approved for human use. Reconstituting and self-administering peptides carries inherent risks including infection, contamination, and dosing errors. Always use proper sterile technique. Consult a qualified healthcare provider before starting any peptide protocol. The Peptide Catalog is not responsible for any adverse effects resulting from the use or misuse of information presented here.