# Understanding retatrutide vial labels Canonical: https://europeanpeptideshop.com/blog/retatrutide-vial/ Explore the catalogue and research library. Ordering and shipping have not opened yet. Compound research · 8 November 2026 · 2 min read · By [European Peptide Shop](https://europeanpeptideshop.com/about/) ### On this page ## The short answer A retatrutide research vial holds freeze-dried (lyophilised) retatrutide as a white to off-white powder, sealed in glass under a rubber stopper. The "10mg", "20mg" or "30mg" on the label is the stated amount of peptide. It is a mass, not a volume. ## What a 10mg vial looks like Ten milligrams is a very small amount of powder. It can sit as a compact cake at the bottom of the vial or spread as a thin film on the glass, and both are normal for freeze-dried material. A sparse-looking vial is not by itself a sign of a short fill. The certificate and the batch number are what to check, not the volume of powder you can see. ## Reading the label against the paperwork - Size. 10mg, 20mg and 30mg are separate catalogue items, each certified as its own batch. - Batch number. It must match the number on the certificate in the [COA publication status](https://europeanpeptideshop.com/coa/). - Form. Lyophilised powder. Pens and ready-made solutions are different products. - Identity and purity. The certificate reports the identity and HPLC purity of that batch. It does not describe any biological effect. The three single-vial batches (100234, 100235 and 100236) are tabulated on the [retatrutide identity page](https://europeanpeptideshop.com/blog/retatrutide/). The guides to [reading a peptide COA](https://europeanpeptideshop.com/blog/how-to-read-peptide-coa/) and [understanding HPLC purity](https://europeanpeptideshop.com/blog/what-hplc-purity-means/) explain what the figures can and cannot show. ## The bundle kit The Retatrutide Bundle Kit pairs two 10mg vials with a 3mL vial of bacteriostatic water. The retatrutide in it is the same material as the single 10mg vial. The retatrutide buying guide lists every format, and prices are on the [retatrutide price page](https://europeanpeptideshop.com/blog/retatrutide-vial-prices/). ## What the vial is not - Not a pen. Pen listings elsewhere are different products from this lyophilised vial. - Not a ready-made solution. The material is supplied dry. - Not a medicine. Retatrutide as supplied here is a laboratory reagent, not a licensed medicine. ## EPS documentation Use the [research catalogue](https://europeanpeptideshop.com/shop/) to check the exact name, labelled amount and format. The [COA library](https://europeanpeptideshop.com/coa/) publishes the original Janoshik reports selected for EPS, retaining the original report client name and any missing batch fields. Literature findings and another supplier's analytical results are not evidence about an EPS batch. ## Laboratory research only Materials listed on this site are supplied for in-vitro laboratory research and are not for use in or on humans or animals. They are not medicines. This article summarises published work and gives no dosing, administration, treatment or in-vivo guidance. Findings from a study apply to the material and conditions of that study, and they say nothing about any product listed here. ## Related listings [10 mg](https://europeanpeptideshop.com/shop/retatrutide-10mg/) Metabolic research ### [Retatrutide](https://europeanpeptideshop.com/shop/retatrutide-10mg/) 10 mg · Lyophilised powder Ordering opens later. Prices and availability are not yet published.[Details](https://europeanpeptideshop.com/shop/retatrutide-10mg/) ## More articles Buying guides · 3 min read ## [Retatrutide vial sizes and prices](https://europeanpeptideshop.com/blog/retatrutide-vial-prices/) Compare retatrutide vial sizes and prices, labelled amounts and documentation. See EPS format details and what to check before comparing final EUR quotes. 8 November 2026 Compound research · 4 min read ## [How retatrutide targets three receptors](https://europeanpeptideshop.com/blog/retatrutide-mechanism-of-action/) How retatrutide is proposed to act at the GIP, GLP-1 and glucagon receptors, which steps are demonstrated and which are inferred. 8 November 2026 Compound research · 6 min read ## [Retatrutide research evidence](https://europeanpeptideshop.com/blog/retatrutide-research-evidence/) Retatrutide evidence by study type, including the October 2026 Ozempic comparator announcement, registry details and limits of sponsor-reported trial. 8 November 2026