Thymalin Reconstitution & Dosage Calculator
This free Thymalin calculator turns your vial size, the bacteriostatic water you add, and your target amount into a concentration, a draw volume, and the exact units on a U-100 insulin syringe. One thing to understand before you start: Thymalin is a thymus extract rather than a single defined peptide, so the milligram figure on the vial is a total of mixed polypeptides.
Thymalin reconstitution calculator
Syringe
U-100 insulinPeptide in vial
Target amount
Bacteriostatic water
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Quick summary
- Converts vial size (mg), bacteriostatic water (mL), and a milligram amount into concentration, draw volume, and U-100 units.
- Works on the vial total, because Thymalin is an extract rather than a single molecule.
- Educational research and measurement tool only — it does not diagnose, treat, or recommend an amount.
What this Thymalin calculator does
This calculator does one job well: it turns your vial size, the amount of bacteriostatic water you add, and your target amount into a concentration (mg/mL), a draw volume (mL), and the matching units on a U-100 insulin syringe. Change any input and the result updates instantly.
Thymalin ships as a freeze-dried powder. Before it can be measured into a syringe it has to be reconstituted — dissolved in bacteriostatic water. How much water you add sets the concentration, and the concentration sets how many units each amount works out to. The presets above cover the most common Thymalin vial setups; use the custom fields for anything else.
How to use the Thymalin calculator
Pick your syringe
Choose the U-100 insulin syringe you'll draw with. Smaller syringes (0.3 mL / 30u) have finer lines, which helps when the draw is small.
Enter your vial and water
Set the milligrams in your Thymalin vial and the bacteriostatic water you added. Together these set the concentration.
Set your target amount
Toggle mg or mcg and pick (or type) the amount you're measuring for. The calculator does the conversion for you.
Read the draw
The result panel shows concentration, draw volume, and the exact U-100 units to pull, plus how many doses your vial contains.
Thymalin reconstitution math, explained
The math is short. Concentration = vial size ÷ bacteriostatic water. Draw volume = target amount ÷ concentration. Units = draw volume × 100 (a U-100 syringe reads 100 units per mL). The table below shows common Thymalin setups and the units for a 1 mg amount at each.
| Vial size | Bac water | Concentration | Units per 1 mg |
|---|---|---|---|
| 10 mg | 1.0 mL | 10 mg/mL | 10 units |
| 10 mg | 2.0 mL | 5 mg/mL | 20 units |
| 10 mg | 2.5 mL | 4 mg/mL | 25 units |
| 10 mg | 5.0 mL | 2 mg/mL | 50 units |
Thymalin amount-to-units reference
How common amounts convert to U-100 syringe units at two example concentrations. These are arithmetic conversions for reference, not a recommendation of any amount.
| Amount | Volume (mL) | U-100 units |
|---|---|---|
| 5 mg (5000 mcg) | 1 mL | 100 units |
| 10 mg (10000 mcg) | 2 mL | 200 units |
| Amount | Volume (mL) | U-100 units |
|---|---|---|
| 5 mg (5000 mcg) | 0.5 mL | 50 units |
| 10 mg (10000 mcg) | 1 mL | 100 units |
Mixing, color & storage tips
An extract, not a single peptide
The milligram figure on a Thymalin vial is the total mass of a mixed polypeptide fraction, not a quantity of one defined molecule. The concentration arithmetic works the same way, but the number means something looser than it does for a synthetic peptide.
Batch consistency is a real question
Because it is derived from animal tissue rather than synthesised, batch-to-batch variation is inherent in a way it is not for a synthetic peptide. A certificate of analysis matters correspondingly more here.
Mixing without foam
Add the water slowly down the inside wall and swirl gently. Do not shake.
Storage
Keep the dry material cold and dark. Refrigerate once reconstituted, keep it out of light, and plan around a limited window. Do not freeze a mixed vial.
Thymalin supplies checklist
A simple reconstitution shopping list. Confirm vial size and batch documentation before you buy.
Thymalin
- Batch COA on every vial
- Third-party purity tested
- U.S. fulfillment, discreet shipping
Thymalin — frequently asked questions
What does this Thymalin calculator tell me?
It converts your vial size, bacteriostatic water volume, and target amount into concentration in mg/mL, draw volume in mL, and U-100 syringe units, on a total-milligram basis.
Is the Thymalin calculator free?
Yes — free, browser-based, and no signup is required.
Is Thymalin the same as Thymosin Alpha-1?
No, and this is the most common confusion about it. Thymosin Alpha-1 is a single defined 28-amino-acid peptide with an approved product behind it. Thymalin is an undefined calf-thymus extract. They are not interchangeable.
How many units is 5 mg of Thymalin?
At 5 mg/mL it is 100 units (1 mL) — a full U-100 syringe. At 10 mg/mL it is 50 units. Units always depend on your exact concentration.
Is this medical advice?
No. This page and calculator are for education and research planning only. Products referenced are sold strictly as research chemicals and are not for human or veterinary use.
Sources & further reading
Related calculators
Thymalin protocol & evidence
There is no meaningful published dosing literature for Thymalin. The protocol page says so plainly rather than printing a number.