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BPC-157 + TB-500 blend calculator (Wolverine stack)

BPC-157 + TB-500 — often sold as the "Wolverine" stack — is the most commonly discussed recovery stack. It comes two ways: a single pre-mixed blend vial (usually 5 mg + 5 mg), or two separate vials with their own concentrations and draws. Use the blend calculator below for a pre-mixed vial, or the per-compound tables and calculators for separate vials.

Wolverine blend dose calculator

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On the vial label
mg
Amount you add
mL
What you plan to take
Syringe sizeU-100 insulin syringe
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How your Wolverine blend draw is calculated

  1. 1Find the concentration

    10 mg × 1,000 ÷ 2 mL
    = 5,000 mcg/mL

  2. 2Work out the volume

    500 mcg ÷ 5,000 mcg/mL
    = 0.10 mL

  3. 3Convert to units

    0.10 mL × 100
    = 10 units

On a U-100 insulin syringe, 100 units equals 1 mL, so each unit is 0.01 mL. The 0.3 mL (30 unit) and 0.5 mL (50 unit) syringes use the same scale, just shorter, which makes small doses easier to read.

Last reviewed

Educational reference only. Not medical advice — follow the instructions from your clinician or pharmacy.

Per-compound reconstitution

Each compound is calculated on its own — different vials, different concentrations, different draws. Use these references, then run your exact numbers on each compound's calculator.

BPC-157 reference

U-100 units to draw for each common BPC-157 dose, by vial size, reconstituted with 2 mL of bacteriostatic water.

VialConcentration200 mcg250 mcg500 mcg
5 mg2.5 mg/mL8 u(0.08 mL)10 u(0.1 mL)20 u(0.2 mL)
10 mg5 mg/mL4 u(0.04 mL)5 u(0.05 mL)10 u(0.1 mL)

Swipe the table to see every dose →

Educational reference only — not a dose recommendation. Units assume a U-100 insulin syringe (100 units = 1 mL on U-100). Always confirm against your own vial, diluent, and clinician or pharmacy instructions.

TB-500 reference

U-100 units to draw for each common TB-500 dose, by vial size, reconstituted with 2 mL of bacteriostatic water.

VialConcentration2 mg2.5 mg5 mg
2 mg1 mg/mL200 u(2 mL)250 u(2.5 mL)500 u(5 mL)
5 mg2.5 mg/mL80 u(0.8 mL)100 u(1 mL)200 u(2 mL)
10 mg5 mg/mL40 u(0.4 mL)50 u(0.5 mL)100 u(1 mL)

Swipe the table to see every dose →

Educational reference only — not a dose recommendation. Units assume a U-100 insulin syringe (100 units = 1 mL on U-100). Always confirm against your own vial, diluent, and clinician or pharmacy instructions.

Wolverine stack dosage chart (pre-mixed BPC-157 + TB-500 vial)

Wolverine stack dosages are usually written per peptide, while a pre-mixed vial is labelled with the total. For a 1:1 vial the blend dose is simply double the per-peptide dose, so "250 mcg of each" means 500 mcg of blend. Community protocols for pre-mixed vials most often cite 500 mcg to 1 mg of blend a day — 250 to 500 mcg of each peptide — for a block of four to six weeks. Neither peptide is an approved medicine and those figures are not from a label, so this page does not recommend one.

The chart reads the blend dose across the three common vial set-ups. Each cell shows the units to draw and how many doses that vial holds, which is what decides when you need the next vial.

  • 10 mg (5 + 5) + 2 mL = 5 mg/mL → 500 mcg blend = 10 units
  • 10 mg (5 + 5) + 3 mL = 3.33 mg/mL → 500 mcg blend = 15 units
  • 20 mg (10 + 10) + 2 mL = 10 mg/mL → 1 mg blend = 10 units

Wolverine stack dosage chart in U-100 units

DoseEach peptide10 mg + 2 mL5 mg/mL10 mg + 3 mL3.33 mg/mL20 mg + 2 mL10 mg/mL
500 mcg250 mcg + 250 mcg10 u(0.1 mL)20 per vial15 u(0.15 mL)20 per vial5 u(0.05 mL)40 per vial
750 mcg375 mcg + 375 mcg15 u(0.15 mL)13 per vial22.5 u(0.22 mL)13 per vial7.5 u(0.08 mL)26 per vial
1 mg500 mcg + 500 mcg20 u(0.2 mL)10 per vial30 u(0.3 mL)10 per vial10 u(0.1 mL)20 per vial
2 mg1 mg + 1 mg40 u(0.4 mL)5 per vial60 u(0.6 mL)5 per vial20 u(0.2 mL)10 per vial

Swipe the table to see every vial →

Educational reference only — not a dose recommendation. Units assume a U-100 insulin syringe (100 units = 1 mL on U-100); “per vial” is how many of that dose the vial holds, before the small dead-space loss on each draw. Confirm against your own vial label, diluent, and clinician or pharmacy instructions.

See also: BPC-157 dosage chart · TB-500 dosage calculator

How the two schedules overlap

BPC-157 is short-acting and usually run on a daily or twice-daily schedule, while TB-500 is long-acting and often run as a higher weekly loading amount for the first few weeks, then a lower weekly maintenance amount. Because their cadences differ, you calculate and draw each one on its own — never mix them in a single syringe based on a combined number.

A typical overlapping block runs both compounds for 4–6 weeks: BPC-157 daily, TB-500 once or twice weekly. Tracking two reconstitution dates and two doses-remaining counts at once is exactly the kind of thing that gets miscounted on paper.

  • Calculate BPC-157 and TB-500 separately — different vials, different concentrations
  • BPC-157: daily/EOD; TB-500: weekly loading then weekly maintenance
  • Keep two beyond-use dates and two doses-remaining counts in view

Pre-mixed Wolverine blend vials

A pre-mixed Wolverine vial contains both peptides, most commonly 5 mg BPC-157 + 5 mg TB-500 (10 mg total) or 10 mg + 10 mg (20 mg total). Enter the total as the vial amount in the calculator above: the ratio is 1:1, so every draw is half BPC-157 and half TB-500.

A 10 mg vial in 2 mL is 5 mg/mL of blend, so 10 units (0.1 mL) is 500 mcg total — 250 mcg of each peptide. A 20 mg vial in 2 mL is 10 mg/mL, so the same 10 units is 1 mg total, or 500 mcg of each. If your protocol is written per peptide, double it to get the total blend dose for a 1:1 vial.

  • 10 mg (5 + 5) / 2 mL = 5 mg/mL → 10 units = 250 mcg BPC-157 + 250 mcg TB-500
  • 20 mg (10 + 10) / 2 mL = 10 mg/mL → 10 units = 500 mcg of each
  • 1:1 blend: total dose = per-peptide dose × 2

Why you never combine the math

It is tempting to add the two vial amounts together and draw once, but that produces the wrong dose for both compounds. Each vial is reconstituted to its own concentration, so the mL that delivers your TB-500 dose will deliver the wrong amount of BPC-157 and vice versa. The reference tables above show each compound's units independently; that is the correct way to run the stack.

  • Two vials = two concentrations = two separate draws
  • Combining the totals over-doses one compound and under-doses the other
  • If a single blended vial is genuinely co-lyophilised, calculate from its labelled total instead

Frequently asked questions

What is the Wolverine stack dosage in units?
For a pre-mixed 1:1 vial, double the per-peptide dose to get the blend dose. From a 10 mg (5 + 5 mg) vial in 2 mL, 500 mcg of blend (250 mcg of each peptide) is 10 units on a U-100 syringe and 1 mg of blend is 20 units. From a 20 mg vial in 2 mL those halve to 5 and 10 units. This page does not recommend a dose.
What is the Wolverine stack?
"Wolverine" is the nickname for BPC-157 combined with TB-500, the most discussed recovery pairing. It is sold either as two separate vials or as one pre-mixed blend vial, usually 5 mg of each. Neither peptide is an approved medicine; this page covers the reconstitution math only.
How do I calculate a pre-mixed Wolverine vial?
Enter the vial's total (10 mg for a 5 + 5 mg vial) and your water volume in the calculator above, then enter the total blend dose. For a 1:1 vial, a dose written as 250 mcg of each peptide is 500 mcg of blend, which is 10 units at 5 mg/mL.
Can I draw BPC-157 and TB-500 in the same syringe?
Some people do combine two already-reconstituted solutions in one syringe for convenience, but you must calculate each compound's volume separately first, because the two vials have different concentrations. This page and the per-compound calculators give you each draw independently; combining is a handling choice, not a math shortcut.
What is a common BPC-157 + TB-500 schedule?
A frequently described block runs BPC-157 daily and TB-500 once or twice weekly for 4–6 weeks, then tapers. This page does not recommend a protocol — it shows the reconstitution math for each compound so whatever schedule you have been given is easy to draw accurately.
How many doses will each vial last for the stack?
It depends on each compound's per-dose amount and vial size. Because BPC-157 is dosed daily and TB-500 weekly, the BPC-157 vial usually empties faster. Calculate each on its own page to see the doses-remaining count, then plan reorders around the shorter of the two.

Primary sources

Background references for this page. PepSync does not make clinical claims; these citations support the educational context only.

  1. 1
    Stable gastric pentadecapeptide BPC 157 and wound healing
    PubMed / Frontiers in Pharmacology · 2018
  2. 2
    Brain-gut axis and pentadecapeptide BPC 157
    PubMed / Current Pharmaceutical Design · 2016
  3. 3
    Thymosin β4 and cardiac protection: implication in inflammation and fibrosis
    PubMed / Annals of the New York Academy of Sciences · 2012
  4. 4
    Thymosin beta 4: a multi-functional regenerative peptide
    PubMed / Expert Opinion on Biological Therapy · 2012
Full reference list
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