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Tirzepatide

Tirzepatide

★★★★★ 4.98 Batch-verified COA · 7,496+ reviews
70,000+
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Buyer Protection & Quality Assurance
International orders are fully protected with reship or refund coverage. All products follow documented lab procedures and include batch-verified COAs no dilution, no hidden changes.

Dispatch within 24 Hours : Your product will be shipped quickly.

CERTIFICATE OF
ANALYSIS

View independent third-party testing results and
quality documentation

View full details

Always quality-tested, verified with third-party COAs

At every stage, KORE batches are screened by independent labs for identity, purity, sterility, and endotoxins. Each lot is released only after it meets strict research-grade specifications and is backed by a third-party Certificate of Analysis (COA) for full transparency.

This multi-step process helps ensure that what’s on the label is exactly what’s in the vial so researchers can focus on data, not doubt.

Identity Test
Passed
Verifies the peptide’s sequence and structure so the correct compound is present in each vial.
Purity Test
Passed
Measures purity and concentration to confirm ≥99% purity on qualifying batches.
Sterility Test
Passed
Screens for bacteria, fungi, and other microorganisms to verify sterile handling.
Endotoxicity
Passed
Tests for lipopolysaccharides (LPS) to ensure endotoxin levels stay within research limits.

Why Choose KORE

Every KORE batch is built around one idea: you should know exactly what’s in the vial. Batches are third-party analyzed, COA-backed, and fully traceable so you’re not gambling on mystery compounds.

From controlled synthesis partners to batch-specific Certificates of Analysis (COAs), KORE is designed for teams who want clean, consistent material and repeatable outcomes not guesswork.

Quality Assurance
Independent testing and documented batch release criteria for consistency you can verify.
Ingredient Transparency
Batch-linked COAs and clear documentation so you know exactly what you’re receiving.
Safety & Compliance
Discreet packaging, tracked delivery, and quality controls aligned with research-grade expectations.
Performance Tested
Verified identity and purity on qualifying lots to support reliable, repeatable research workflows.

*KORE products are sold strictly for laboratory research use only. Not for human or animal use, or any diagnostic or therapeutic application.*

Lab technician performing analysis
RESEARCH RESOURCES
SCIENTIFIC LITERATURE
PubMed Research Google Scholar NCBI Database

You ask,
we answer.

Straightforward answers to key questions researchers commonly ask verification, COAs, storage, and handling for research use only.

How are KORE Peptides batches verified?
Each qualifying batch is third-party analyzed with batch documentation (COA) to confirm identity and purity. We do not substitute, relabel, or make silent changes to lots.
Are Certificates of Analysis (COAs) available?
Yes. COAs are available for qualifying batches and are linked to the specific lot you receive.
What form will my peptides arrive in?
Products ship in sealed research vials as labeled. Refer to the product page and COA for lot-specific details.
What purity specifications do you follow?
Qualifying batches are tested to confirm high purity according to the batch COA. If a lot does not meet requirements, it is not released.
How should peptides be stored before use?
Store vials in a cool, dry place away from direct light. For longer storage, follow best practices indicated on the product label and batch documentation.
How should peptides be stored after reconstitution?
After reconstitution, handle using sterile technique and store under conditions appropriate for your lab workflow. Avoid repeated freeze-thaw cycles whenever possible.
What is the typical shelf life of unopened vials?
Shelf life varies by compound and storage conditions. Always reference the label and batch documentation for the most accurate guidance.
Need help?
If you have any questions about your order, shipping, or COA, feel free to contact our support team anytime.
support@korepeptides.co