Product instructions
Confirm the formulation, vial strength, prescribed amount, and manufacturer’s preparation directions.
RETASEARCH / TOOLS
Research tools
& calculators
Concentration, schedule arithmetic, and unit conversions.
Reconstitution calculator
Enter vial amount, solution volume, and dose to calculate concentration and syringe volume.
Source-example presets illustrate arithmetic, not recommended doses. Prices are editable examples. Blend results represent total blend mass.
Calculation assumptions
Concentration = mass ÷ final volume. Volume = dose ÷ concentration. U-100 syringe units = volume × 100; these are volume markings, not international units of peptide potency. Verify final volume and preparation instructions independently.
Common presets
Source-reported arithmetic examples, not preparation or dosing recommendations. BAC water compatibility must be confirmed for each formulation. Select a row to load its values above.
| Compound | Vial (mg) | BAC water (mL) | Example amount (mg) | U-100 units | Calculator |
|---|---|---|---|---|---|
| BPC-157 | 10 | 2 | 0.25 | 5.00 | |
| GHK-Cu | 50 | 3 | 1 | 6.00 | |
| TB-500 | 10 | 2 | 2.5 | 50.00 | |
| KLOW Blend | 80 | 3 | 1.67 | 6.26 | |
| Retatrutide | 10 | 2 | 2 | 40.00 | |
| Semaglutide | 10 | 2 | 0.25 | 5.00 | |
| Tirzepatide | 10 | 2 | 2.5 | 50.00 | |
| Tesamorelin | 10 | 2 | 1 | 20.00 | |
| CJC-1295 + Ipamorelin | 10 | 2 | 0.4 | 8.00 | |
| Ipamorelin | 10 | 2 | 0.2 | 4.00 | |
| PT-141 | 10 | 2 | 1 | 20.00 | |
| Semax | 10 | 2 | 0.3 | 6.00 | |
| Selank | 5 | 2 | 0.25 | 10.00 | |
| NAD+ | 500 | 5 | 50 | 50.00 |
CJC-1295 + Ipamorelin assumes 5 mg of each component: 0.4 mg total equals 0.2 mg each. KLOW uses total blend mass. Fractional units are arithmetic results, not a guarantee of syringe precision.
What you need
Specified diluent
BAC WATER means bacteriostatic water. Use it only when the product instructions allow it; sterile water and saline are not automatic substitutes.
Measuring equipment
Use sterile, single-use needles and syringes appropriate to the prescribed preparation and volume. This calculator’s scale is U-100.
Clean preparation area
Have hand-hygiene supplies, alcohol prep pads, a label, and a sharps container ready.
Why BAC water?
It contains benzyl alcohol as a preservative. It does not establish compatibility or a universal shelf life for a mixed drug.
Storage
Follow the product-specific temperature and discard instructions. Do not apply a blanket four-week lifespan to reconstituted products.
Syringe math
Mass ÷ final volume = concentration. Dose ÷ concentration = volume. On a U-100 syringe, 0.1 mL corresponds to 10 units.
Step by step
A preparation checklist to use alongside your pharmacist’s or manufacturer’s instructions.
Verify the product
Check identity, strength, expiry, and seal. Confirm the required diluent and final concentration before starting.
Prepare the area
Clean your hands and workspace. Disinfect vial stoppers with alcohol and allow them to dry.
Measure the specified diluent
Use fresh sterile equipment. Follow the product’s exact volume and transfer instructions; the calculator does not choose the preparation method.
Follow the mixing instructions
Use the product’s stated mixing technique and inspection criteria. Stop and ask a pharmacist if the appearance is unexpected or dissolution is incomplete.
Check the calculation
Confirm mg versus mcg, final concentration, and syringe scale. Have a pharmacist verify the volume and that it is measurable with your device.
Label, store, and dispose
Record preparation date, concentration, and the assigned discard time. Follow specified storage conditions and put used sharps directly into a sharps container.
Supplies
Bacteriostatic water
Confirm the exact diluent with a pharmacist, including suitability for the intended product and route.
Sterile syringes and needles
Check capacity and graduations. Use a new sterile needle and syringe for every vial entry; never reuse or share.
Alcohol prep pads
Keep individually packaged pads available for vial-stopper disinfection.
Sharps container and labels
Keep disposal within reach and label prepared products clearly to avoid mix-ups.
Reference notes
Preset inputs are arithmetic examples. Preparation and diluent guidance: Bacteriostatic Water for Injection labeling and CDC injection safety. Product-specific instructions take precedence.
GLP-1 calculator
Explore a stepped weekly schedule with optional calendar dates.
Select a preset or enter values, then generate your schedule.
Unit converter
Edit any amount to instantly convert between mass, volume, and U-100 syringe units.
Unit definitions
1 mg = 1,000 mcg. U-100 syringe units represent volume: 100 units = 1 mL. They are not peptide potency IU. Conversions assume a uniform solution with the entered final volume.