AT-T2 (Tirzepatide) is supplied in two vial sizes — 10mg and 30mg — and the choice between them is a study-logistics question, not a potency or purity question. This guide explains what differs between the two sizes and how to match vial size to study scale. It is written for qualified researchers and makes no human-use, therapeutic, or dosing claims.
Both AT-T2 vial sizes are manufactured to the same purity standard; the difference is simply how much lyophilized material is in the vial before reconstitution.
Why AT-T2 Comes in Two Vial Sizes
Offering a compound in more than one vial size lets a lab match material quantity to a study’s scale and expected usage window, without overbuying material that expires before use or running out mid-study and introducing a batch-to-batch variable partway through a protocol. AT-T2’s two sizes — 10mg and 30mg — follow that logic: the same dual-agonist compound described in the AT-T2 (Tirzepatide) research guide, differing only in total peptide mass per vial.
The Two Vial Sizes at a Glance
- AT-T2 10mg — suited to single-protocol pilot studies, early feasibility work, or labs reconstituting to a lower total-volume concentration.
- AT-T2 30mg — the larger format, more efficient on a per-mg basis for extended-duration protocols, multiple parallel conditions drawn from a shared stock solution, or larger-scale research programs where a single vial reduces vial-to-vial variability across the study.
Matching Vial Size to Study Design
As with any lyophilized research compound, the main variable to plan around is total reconstituted volume against expected usage across the life of the solution, not just total mass. Researchers should estimate total peptide mass needed across the full study — including repeat runs and controls — before choosing a vial size, since splitting a study across multiple smaller vials introduces a batch variable that a single appropriately-sized vial avoids. Reconstitution concentration should be planned alongside vial size, since the same vial can be reconstituted to different final concentrations depending on solvent volume; see the reconstitution-volume guide linked below.
Quality and Documentation
Both AT-T2 vial sizes are manufactured to the same purity standard, with a third-party Certificate of Analysis available on request regardless of size ordered. Vial size has no bearing on identity or purity documentation — reviewing the batch-specific COA and recording its identifiers alongside experimental notes matters equally for either format.
Related Research Guides
- What Is Tirzepatide (AT-T2)? A Research Guide
- Retatrutide Research Vial Sizes Explained
- Calculating Peptide Reconstitution Volumes
- AT-T2 (Tirz) — all vial sizes
- Certificates of Analysis
Research Use Only. Tirzepatide (AT-T2) is intended strictly for laboratory research by qualified professionals. It is not FDA approved and is not for human or animal use. Nothing in this article constitutes medical, therapeutic, or dosing guidance.
Storage & Handling
- Before reconstitution: store lyophilized vials at −20°C, protected from light and moisture, regardless of vial size. Allow a vial to reach room temperature before opening to avoid condensation.
- After reconstitution: refrigerate at 2–8°C and use within roughly 28 days. Avoid repeated freeze-thaw cycles, which accelerate degradation.
- Recommended solvent: bacteriostatic water is the standard choice for multi-use reconstitution.
The compound(s) discussed in this article are available with a Certificate of Analysis on the Alpha Tides shop.
Frequently Asked Questions
Not until reconstituted. Both are lyophilized powder at the same purity; the 30mg vial simply contains three times the total peptide mass. Final concentration depends on how much solvent is used during reconstitution, which researchers control independently of vial size.
No. Both AT-T2 vial sizes are manufactured and tested to the same purity standard, documented on a batch-specific Certificate of Analysis.
Estimate total peptide mass needed across the full study, including repeats and controls, then choose the vial size (or combination of vials) that meets that total with the fewest separate vials to minimize batch-to-batch variability.
Yes, but each vial may carry a distinct COA/batch identifier, which introduces a variable a single larger vial avoids. For studies where batch consistency matters, sizing to a single vial is generally preferable.
Storage conditions are identical regardless of size (−20°C lyophilized, 2–8°C after reconstitution). The practical difference is that the 30mg vial typically yields more reconstituted solution used over a longer window, making freeze-thaw discipline and usage-date tracking more important.
Research Compounds
Research Use Only — Not for Human or Animal Consumption. Content is provided for informational and educational purposes and does not constitute medical advice.
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