BPC-157 TB-500 Blend Dosage Calculator and Syringe Units
BPC-157 TB-500 blend dosage calculator math for a vial with 5 mg of each peptide and 2 mL of water: 40 units (0.4 mL) on a U-100 syringe holds 1,000 mcg of BPC-157 and 1,000 mcg of TB-500. Enter your own vial, water and either a target amount or a syringe volume, and it shows the amount of each peptide per draw, as math only and never as dose advice.
The worked example, step by step
- Strength: 5 mg in 2 mL is 2.5 mg per mL, or 2,500 mcg per mL, for each peptide.
- Volume: 40 units is 0.4 mL, because 100 units equal 1 mL.
- Amount: 0.4 mL times 2,500 mcg per mL is 1,000 mcg of each peptide.
These round numbers only show the steps. They are not amounts to use.
Short answer
- What does this calculator work out?
- The strength of each peptide per mL, the mL and syringe units per draw, and the mcg of BPC-157 and of TB-500 in that draw.
- Does it tell me a dose?
- No. It does math on numbers you enter. Neither peptide is approved, and no human study has tested the blend.
- What syringe does it assume?
- A U-100 insulin syringe, where 100 units equal 1 mL.
Sources: MedlinePlus (US National Library of Medicine), patient instruction 000660, Giving an insulin injection (updated 21 July 2024): the U-100 rule this calculator uses for every unit conversion, 100 units in 1 mL, and each small notch on a 1 mL syringe is 1 unit; US FDA, Certain Bulk Drug Substances for Use in Compounding that May Present Significant Safety Risks (page dated 22 April 2026): BPC-157 and thymosin beta-4 fragment entries
Enter your own numbers
The vial amounts start at placeholders. Change them to match your vial label. The target starts at zero, and no draw is shown until you set it.
Any target or volume must come from you. The calculator has no dose to suggest.
Result for the numbers you entered
BPC-157 strength
2.5 mg/mL
2500 mcg/mL
TB-500 strength
2.5 mg/mL
2500 mcg/mL
Set a target amount above to see the draw.
Units assume a U-100 insulin syringe, where 100 units equal 1 mL and 1 unit equals 0.01 mL.
What Each Syringe Mark Holds in Your Blend
Each syringe mark holds some of both peptides. This table updates with your vial and water numbers.
Most blend calculators show one peptide at a time. In a blend, you always get both.
| Units | mL | BPC-157 (mcg) | TB-500 (mcg) |
|---|---|---|---|
| 5 | 0.05 | 125 | 125 |
| 10 | 0.1 | 250 | 250 |
| 20 | 0.2 | 500 | 500 |
| 25 | 0.25 | 625 | 625 |
| 30 | 0.3 | 750 | 750 |
| 50 | 0.5 | 1250 | 1250 |
| 100 | 1 | 2500 | 2500 |
Arithmetic only. These rows are syringe marks, not suggested amounts.
How the Blend Math Works
It takes three steps, all division. The water sets how strong each mL is, not how much peptide the vial holds.
- Strength: divide each peptide's mg by the mL of water. Do this once for BPC-157 and once for TB-500.
- Volume: divide your target by the strength of that same peptide. That gives the mL to draw.
- Units: multiply the mL by 100 to get units on a U-100 syringe. Then multiply the mL by the other peptide's strength to see how much of it comes along.
When the two amounts are not equal
The worked example at the top of this page uses equal amounts. If the two peptides are not equal in the vial, the second amount changes. With 10 mg of TB-500 and 5 mg of BPC-157, any draw holds twice as much TB-500 as BPC-157. The calculator handles this for you.
Reading Insulin Syringe Units
On a standard U-100 insulin syringe, 100 units fill 1 mL, so 1 unit is 0.01 mL.
MedlinePlus, the US National Library of Medicine site, says standard insulin holds 100 units in 1 mL. It also says every small notch on a standard 1 mL insulin syringe is 1 unit, and that the insulin type should match the syringe type.
1 unit = 0.01 mL
100 units = 1 mL
An FDA label states the same link for a smaller syringe. On a 0.3 mL (30 unit) insulin syringe, each 1 unit mark means 0.01 mL. For a printable chart, see the insulin syringe units chart.
Sources: MedlinePlus (US National Library of Medicine), patient instruction 000660, Giving an insulin injection (updated 21 July 2024): the U-100 rule this calculator uses for every unit conversion, 100 units in 1 mL, and each small notch on a 1 mL syringe is 1 unit; OXLUMO (lumasiran) prescribing information, FDA label on DailyMed, set ID 16985a31-f5e4-4557-9266-fc78d4bc5055 (1 December 2025): states that 1 unit marks equal 0.01 mL on a 0.3 mL (30 unit) insulin syringe, the factor used for the 0.3 mL syringe option
Why Mixing Numbers Do Not Transfer Between Products
Each drug label gives its own mixing steps and strength, so one product's numbers do not fit another.
The Egrifta SV label is one example. It says that after mixing with 0.5 mL of sterile water, the strength is 2 mg per 0.5 mL. That works out to 4 mg per mL. The same label warns that its two versions differ in dose, number of vials, mixing steps and storage. So mixing numbers from one product do not carry over to another. BPC-157 and TB-500 have no FDA label at all, so there are no official mixing numbers for them.
What Bacteriostatic Water Is For
Its FDA label says bacteriostatic water is only for diluting or dissolving drugs for injection, following the drug maker's instructions.
The Hospira label says it contains benzyl alcohol, at 0.9% (9 mg/mL) or 1.1% (11 mg/mL), as a preservative. It comes in a multiple dose vial, so it can be drawn from more than once.
For how it differs from plain sterile water, see BAC water vs sterile water. For the same math with one peptide, use the peptide reconstitution calculator.
What the Research Says About the Blend
There is very little in people, and nothing that sets a dose. For the combined blend, the main study found was in rats.
A 2025 systematic review found 36 studies of BPC-157 in sports medicine, and only 1 was in people. The same review says BPC-157 has a half-life of under 30 minutes and is cleared by the kidneys.
The published studies in our sources used these amounts. They are listed so you can see what was tested, not as a guide:
| Amount used | Route and length | Who |
|---|---|---|
| BPC-157 10 µg/kg/day, TB-500 60 µg/kg/day, or both together | Into the belly cavity (intraperitoneal), for four weeks | Rats after Achilles tendon surgery (animal dose) |
| BPC-157 up to 20 mg | IV infusion | 2 healthy adults, a pilot safety study |
| Full length thymosin beta-4, 42 to 1260 mg | IV, single dose or daily for 14 days | Healthy volunteers. This is not TB-500. |
| Not stated in our source | Injection into the knee, BPC-157 alone or with thymosin beta-4 | People with knee pain, a chart review at one clinic |
Disclaimer: these are amounts from research reports, not label doses and not a recommendation. Animal per kg figures do not convert to people. Two people is far too few to show safety. Dose decisions belong with a licensed clinician.
For what people mean by the combined blend, see the Wolverine stack guide. For each peptide on its own, see the BPC-157 profile and the TB-500 profile.
Sources: Emerging Use of BPC-157 in Orthopaedic Sports Medicine: A Systematic Review (31 July 2025), PubMed 40756949: 36 studies, 1 in people; half-life under 30 minutes; Effects of BPC-157 and TB-500 on Achilles tendon healing in rats: A histopathological and biomechanical study (23 July 2026), PubMed 42542926: rat doses, alone and combined; Safety of Intravenous Infusion of BPC157 in Humans: A Pilot Study (September 2025), PubMed 40131143: up to 20 mg IV in 2 healthy adults; A randomized, placebo-controlled, single and multiple dose study of intravenous thymosin beta4 in healthy volunteers (April 2010), PubMed 20536472: full length thymosin beta-4, 42 to 1260 mg IV; Intra-Articular Injection of BPC 157 for Multiple Types of Knee Pain (July 2021), PubMed 34324435: knee injection chart review, BPC-157 alone or with thymosin beta-4
What the FDA Says About BPC-157 and TB-500
Both are on the FDA list of compounding ingredients that may pose safety risks.
For BPC-157, the FDA says it has little or no safety information for the proposed routes, so it cannot tell whether it would harm people. For TB-500, the thymosin beta-4 fragment, the FDA says it has found no human exposure data.
A 2026 review on injectable peptides and biohacking drugs warns that unregulated peptides can carry contamination, impurities and inaccurate dosing. A calculator assumes the vial holds what its label says. If the label is wrong, every number on this page is wrong too.
Sources: US FDA, Certain Bulk Drug Substances for Use in Compounding that May Present Significant Safety Risks (page dated 22 April 2026): BPC-157 and thymosin beta-4 fragment entries; Dangers of Injectable Peptides and Other Unregulated "Biohacking" Drugs (July 2026), PubMed 42757290: contamination, impurities and inaccurate dosing
Frequently Asked Questions
Is there a standard BPC-157 TB-500 blend dose?
No. Neither peptide is an approved medicine, no label sets a dose, and no human study has tested the blend. That is why the target amount starts at zero. This calculator only does the math on a number you bring.
How does a blend change the syringe math?
Both peptides are dissolved in the same water, so every draw holds some of each. You pick one peptide as the target. The calculator finds the volume for that target, then shows how much of the other peptide comes along in the same draw.
How many units is 0.1 mL on an insulin syringe?
On a standard U-100 insulin syringe, 100 units equal 1 mL, so 0.1 mL is 10 units. Each small notch on a standard 1 mL insulin syringe is 1 unit. On a 0.3 mL (30 unit) syringe, an FDA label states that each 1 unit mark means 0.01 mL.
Does adding more BAC water change how much peptide is in the vial?
No. The amount of each peptide in the vial stays the same. More water lowers the strength per mL, so the same target needs a bigger draw. Less water raises the strength, so the draw gets smaller.
What is bacteriostatic water?
Its FDA label says it contains benzyl alcohol added as a preservative. It comes in a multiple dose vial, and it is meant only for diluting or dissolving drugs for injection, following the drug maker's instructions.
Is BPC-157 or TB-500 safe?
Safety in people is not established. The FDA says it has little or no safety information on BPC-157 for the proposed routes. For TB-500, the thymosin beta-4 fragment, the FDA says it has found no human exposure data. A 2026 review also warns that unregulated peptides can carry contamination, impurities and inaccurate dosing.
Is this calculator medical advice?
No. It does arithmetic on numbers you enter. It does not choose a dose, check that a product is what its label says, or tell you whether to use anything. Decisions about any compound belong with a licensed clinician.
Sources: MedlinePlus (US National Library of Medicine), patient instruction 000660, Giving an insulin injection (updated 21 July 2024): the U-100 rule this calculator uses for every unit conversion, 100 units in 1 mL, and each small notch on a 1 mL syringe is 1 unit; OXLUMO (lumasiran) prescribing information, FDA label on DailyMed, set ID 16985a31-f5e4-4557-9266-fc78d4bc5055 (1 December 2025): states that 1 unit marks equal 0.01 mL on a 0.3 mL (30 unit) insulin syringe, the factor used for the 0.3 mL syringe option; Bacteriostatic Water for Injection, USP (Hospira), FDA label on DailyMed, set ID 87d6e9dc-fe3b-4593-ac9a-d7493d1959c7 (22 May 2026): labeled use for diluting drugs, 0.9% or 1.1% benzyl alcohol, multiple dose vial; US FDA, Certain Bulk Drug Substances for Use in Compounding that May Present Significant Safety Risks (page dated 22 April 2026): BPC-157 and thymosin beta-4 fragment entries; Dangers of Injectable Peptides and Other Unregulated "Biohacking" Drugs (July 2026), PubMed 42757290: contamination, impurities and inaccurate dosing
Related Tools and Guides
This calculator is for education only and is not medical advice. It turns numbers you enter into volumes and syringe readings. It does not choose a dose. BPC-157 and TB-500 are research compounds that are not approved for human use. Talk to a qualified healthcare professional before making any decision about your health.
Sources
- 1.MedlinePlus (US National Library of Medicine), patient instruction 000660, Giving an insulin injection (updated 21 July 2024): the U-100 rule this calculator uses for every unit conversion, 100 units in 1 mL, and each small notch on a 1 mL syringe is 1 unit
- 2.OXLUMO (lumasiran) prescribing information, FDA label on DailyMed, set ID 16985a31-f5e4-4557-9266-fc78d4bc5055 (1 December 2025): states that 1 unit marks equal 0.01 mL on a 0.3 mL (30 unit) insulin syringe, the factor used for the 0.3 mL syringe option
- 3.EGRIFTA SV (tesamorelin) prescribing information, FDA label on DailyMed, set ID 3d783378-b02d-4f19-99dd-0fc91a042224 (29 July 2026): example of a label stating strength as 2 mg per 0.5 mL after mixing, and that mixing steps are product specific
- 4.Bacteriostatic Water for Injection, USP (Hospira), FDA label on DailyMed, set ID 87d6e9dc-fe3b-4593-ac9a-d7493d1959c7 (22 May 2026): labeled use for diluting drugs, 0.9% or 1.1% benzyl alcohol, multiple dose vial
- 5.US FDA, Certain Bulk Drug Substances for Use in Compounding that May Present Significant Safety Risks (page dated 22 April 2026): BPC-157 and thymosin beta-4 fragment entries
- 6.Emerging Use of BPC-157 in Orthopaedic Sports Medicine: A Systematic Review (31 July 2025), PubMed 40756949: 36 studies, 1 in people; half-life under 30 minutes
- 7.Safety of Intravenous Infusion of BPC157 in Humans: A Pilot Study (September 2025), PubMed 40131143: up to 20 mg IV in 2 healthy adults
- 8.Intra-Articular Injection of BPC 157 for Multiple Types of Knee Pain (July 2021), PubMed 34324435: knee injection chart review, BPC-157 alone or with thymosin beta-4
- 9.Effects of BPC-157 and TB-500 on Achilles tendon healing in rats: A histopathological and biomechanical study (23 July 2026), PubMed 42542926: rat doses, alone and combined
- 10.A randomized, placebo-controlled, single and multiple dose study of intravenous thymosin beta4 in healthy volunteers (April 2010), PubMed 20536472: full length thymosin beta-4, 42 to 1260 mg IV
- 11.Dangers of Injectable Peptides and Other Unregulated "Biohacking" Drugs (July 2026), PubMed 42757290: contamination, impurities and inaccurate dosing