How do I calculate the correct peptide dose?

Enter your vial size (mg), bacteriostatic water volume (mL), and desired dose into the ASCEND calculator. It instantly returns the exact syringe draw in IU units, concentration in mg/mL, and volume per dose in mL - no manual math required.

Is the reconstitution math verified for accuracy?

Yes. ASCEND calculation logic is cross-referenced against multiple independent 3rd-party analytical laboratory batch reports and published clinical trial data to ensure research accuracy.

What is bacteriostatic water and why is it used for peptide reconstitution?

Bacteriostatic water (BAC water) contains 0.9% benzyl alcohol, which inhibits bacterial growth and allows multi-dose use of a reconstituted vial. It is the standard diluent for research peptides because sterile water lacks preservative properties and degrades peptides faster after opening.

How many doses are in a peptide vial?

It depends on your vial size, reconstitution volume, and dose. Use the ASCEND Vial Lasts calculator - enter your vial mg, BAC water mL, and dose to see exactly how many doses your vial contains.

ASCEND | Peptide Reconstitution & Dosing Calculator

Quick Start

Everything ASCEND can do

Start here

🧮

Core

Calculate an Amount

Pick a peptide, set vial strength and BAC water - get your exact draw in mL and syringe units instantly.

Select a preset - or type to search all 101.

Set vial strength (mg) and BAC water (mL). Defaults auto-fill.

Adjust your amount. Draw volume updates in real time.

⭐

Convenience

Favorites

Tap ☆ next to any preset to pin it to the top of the dropdown. Persists across sessions.

＋

Customization

Custom Peptides

Tap ＋ Custom to add any peptide not in the built-in list - name, strength, BAC water, dose, and storage note.

Multi-peptide protocols

Stack Builder New

Build a Multi-Peptide Stack

Combine up to 6 peptides with individual amounts. Tap STACK in the preset row to open the builder. A badge shows active peptides. Print the full stack as a PDF.

Tap STACK in the preset row header.

Add rows, pick presets, set amounts.

Tap Print Stack to export the protocol as a PDF.

Vial tracking

🛡️

Vial Guard

Draw Counter & Low-Vial Warning

After calculating, ASCEND shows exactly how many draws remain. A warning fires when fewer than 3 draws are left.

🔔

Reminders New

Email Reminder When Running Low

Get emailed before you run out. Tap Set Reminder below the Vial Guard panel, pick a timeframe, and enter your email.

Enter your amount.

Tap Set Reminder → pick 1 week, 2 weeks, 1 month, or custom.

Enter your email and vial name. Hit Confirm & Set Reminder.

Export & share

🖨️

Lab Protocol PDF New

Print a Branded Dosing Sheet

Tap the print icon in the results row. Generates a clean PDF with your draw, inputs, recon steps, and a unique protocol ID. Works for single peptides and full stacks.

🔗

Shareable Protocols New

Share Your Exact Setup

Tap Share in the results row. Copy the link or send directly to X, Reddit, WhatsApp, or Telegram. The URL encodes your full setup.

Peptide Presets 94

↺ Recently calculated

◆ Dose

◆ Frequency

Recommended Titration

◆ Dose

◆ Vial Size

◆ BAC Water ?

◆ Syringe Size

⚠ Amount exceeds vial strength.

◆ Results

DRAW

ascendpeptide.org

DRAW

🔔 Vial Guard Reminder

Send reminder email in

✓ Verified

units

Concentration

-mg/mL

Volume per Dose

-mL

Vial Lasts

Draw exceeds syringe capacity

◆ Reconstitution

1Draw calculated BAC water volume into syringe

2Inject slowly down the inside wall of the vial, do not aim at powder

3Swirl gently, never shake or vortex

4Let sit 5–10 min at room temp until fully dissolved

5Refrigerate immediately at 2–8°C after mixing

◆ Storage

Lyophilized powder: room temperature up to 2 years. Reconstituted: refrigerate 2–8°C, use within 28 days. Avoid repeated freeze-thaw cycles.

◆ Reading Your Results

Draw (IU): mark on a U-100 insulin syringe to pull to. Concentration: mg/mL after reconstitution. Volume/draw: exact mL per use. Vial lasts: total uses before the vial runs dry.

◆ Supplies

1U-100 insulin syringe (0.5 mL or 1 mL capacity)

2Bacteriostatic water for reconstitution

3Alcohol swabs (70% isopropyl alcohol)

4Sharps disposal container

5Nitrile gloves for sterile handling

◆ Quality Checks

!Reconstituted solution should be clear and colorless

!Discard if cloudy, colored, or has visible particles

!Use a fresh needle tip for every draw

!Label vial: peptide name, concentration, reconstitution date

!Use Vial Guard to track remaining draws and set alerts

◆ Research Tips

!Verify vial strength matches your label before calculating

!Use Stack It to combine multiple peptides in one stack

!Combo Vial calculates multi-peptide reconstitution in one vial

!Save your protocol with the tracker to log every entry

◆ Research References

Jastreboff AM et al. Tirzepatide Once Weekly for the Treatment of Obesity. N Engl J Med. 2022;387:205-216. PMID 35658024 Rosenstock J et al. Tirzepatide vs Semaglutide in Type 2 Diabetes (SURPASS-2). N Engl J Med. 2021;385:503-515. PMID 34129783 FDA. Mounjaro (tirzepatide) Prescribing Information. NDA 215866. U.S. Food & Drug Administration, 2022.

Reconstitution parameters cross-referenced against published research literature and independently verified by third-party analytical laboratories (HPLC/MS). This tool performs mathematical conversions only and does not constitute medical advice.

Other Calculators

ASCEND is a mathematical tool for research purposes only. Not for medical use.

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