Glutathione Reconstitution & Dosage Calculator
This free glutathione 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. Glutathione is unusual on this site: it is supplied in very large milligram amounts, so draws are big and frequently exceed a single 1 mL insulin syringe. The calculator flags that rather than quietly returning an impossible number.
Glutathione reconstitution calculator
Syringe
U-100 insulinPeptide in vial
Target amount
Bacteriostatic water
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Quick summary
- Converts a large-milligram vial, bacteriostatic water (mL), and a target amount into concentration, draw volume, and U-100 units.
- Built for the 1500 mg vial size, where draws are measured in whole millilitres rather than a few units.
- Educational research and measurement tool only — it does not diagnose, treat, or recommend an amount.
What this Glutathione 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.
Glutathione 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 Glutathione vial setups; use the custom fields for anything else.
How to use the Glutathione 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 Glutathione 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.
Glutathione 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 Glutathione setups and the units for a 100 mg amount at each.
| Vial size | Bac water | Concentration | Units per 100 mg |
|---|---|---|---|
| 1500 mg | 5.0 mL | 300 mg/mL | 33.3 units |
| 1500 mg | 10.0 mL | 150 mg/mL | 66.7 units |
| 1500 mg | 15.0 mL | 100 mg/mL | 100 units |
| 1500 mg | 30.0 mL | 50 mg/mL | 200 units |
| 600 mg | 6.0 mL | 100 mg/mL | 100 units |
Glutathione 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 |
|---|---|---|
| 100 mg | 1 mL | 100 units |
| 200 mg | 2 mL | 200 units |
| 300 mg | 3 mL | 300 units |
| 600 mg | 6 mL | 600 units |
| Amount | Volume (mL) | U-100 units |
|---|---|---|
| 100 mg | 0.667 mL | 66.7 units |
| 200 mg | 1.333 mL | 133.3 units |
| 300 mg | 2 mL | 200 units |
| 600 mg | 4 mL | 400 units |
Mixing, color & storage tips
Draws routinely exceed one syringe
This is the important difference from every other compound on the site. At 100 mg/mL a 200 mg target is 2 mL — double the capacity of a 1 mL U-100 insulin syringe. Large-volume work generally uses a larger syringe rather than several insulin syringes; the calculator flags any amount that will not fit the capacity you select.
A lot of water for a large vial
A 1500 mg vial needs far more diluent than a 10 mg peptide vial. Check the vial has physical room for the volume you intend to add before you start, and add it in stages, letting the powder dissolve between additions.
Colour and clarity
Reconstituted glutathione should be clear to very faintly straw-coloured. Reduced glutathione oxidises readily, so a solution that darkens noticeably or develops particles should be discarded rather than used.
Storage
Keep the dry powder cold, dark and dry — glutathione is hygroscopic. Refrigerate once reconstituted, protect it from light, and plan around a short usable window; it is less stable in solution than most of the peptides on this site.
Glutathione supplies checklist
A simple reconstitution shopping list. Confirm vial size and batch documentation before you buy.
Glutathione
- Batch COA on every vial
- Third-party purity tested
- U.S. fulfillment, discreet shipping
Glutathione — frequently asked questions
What does this glutathione 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. It is a measurement tool, not a recommendation.
Is the glutathione calculator free?
Yes — free, browser-based, and no account is required.
How much bacteriostatic water do I add to a 1500 mg glutathione vial?
A common working choice is 15 mL, which makes 100 mg/mL and keeps the arithmetic simple — every 100 mg is 1 mL. Using 10 mL makes 150 mg/mL and yields smaller draws; using 30 mL makes 50 mg/mL and larger ones. Confirm the vial physically holds the volume first.
How many units is 200 mg of glutathione?
At 100 mg/mL it is 2 mL, which is 200 units — twice the capacity of a 1 mL U-100 syringe, so it does not fit in a single insulin syringe. At 150 mg/mL it is about 1.33 mL. This is why the tool flags capacity instead of just printing a number.
Why are glutathione draws so much bigger than peptide draws?
Because the amounts are two to three orders of magnitude larger. A typical peptide target is a few hundred micrograms; glutathione targets are hundreds of milligrams. The formula is identical — only the scale changes.
How long does a reconstituted glutathione vial last?
Shorter than most peptides. Reduced glutathione oxidises in solution, so refrigerate it, keep it dark, and plan around a short window. Discard it if the colour deepens or particles appear.
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
Glutathione protocol & evidence
Dosing for Glutathione comes from published human trials. The protocol page carries the schedule that was actually administered, with the citation.
