Buy Tirzepatide – Research Peptide | PEPTEX

Buy Tirzepatide – Research Peptide | PEPTEX

Lipidated 39-amino acid synthetic peptide. CAS 2023788-19-2. MW 4813.53 Da. Purity ≥98% by HPLC and MS. Carries a C18 fatty diacid moiety at Lys²⁶ for extended plasma half-life in solution. White to off-white lyophilised powder; reconstitute in sterile aqueous solution. Supplied in a sealed borosilicate glass vial. Intended for laboratory and research use only. Store at −20°C; protect from light and moisture.

Price: EUR | Brand: PEPTEX | In Stock | EU-wide delivery, up to 7 business days

Rating: 5/5 (546 reviews)

Customer Reviews

Marta — ★★★★
Effective but shipping to Netherlands took 8 days last time. First order arrived in 4. Product itself is consistent though.
Marta P. — ★★★★★
packaging impressed me honestly. double insulated, cold packs still frozen after 4 days in transit to Madrid. the powder dissolved perfectly. on week 6 now and eating about 40% less without trying
Daisy — ★★★★★
This is my go-to for weight management research now. Five orders in, never disappointed. Support team actually knows what they're talking about which is rare in this space.
Nicolas D. — ★★★★
Works but the GI side effects at 7.5mg were rough for me. Stayed at 5mg which is more tolerable. Results are slower but consistent. Product quality itself is fine, just wish my stomach agreed with higher doses.
Günther — ★★★★★
My husband and I both use tirzepatide from peptex. He's on 10mg, I'm on 5mg. Both seeing steady progress. The fact that you can adjust the dose with vials gives us flexibility that pens don't offer. Third order for both of us.

Available Sizes

Storage Recommendations

ConditionTemperatureDuration
Lyophilised-20°CUp to 24 months
Reconstituted2-8°CUp to 12 weeks with Sterile Diluent Solution

Research References

  1. Tirzepatide Once Weekly for the Treatment of Obesity (SURMOUNT-1) — NEJM / PubMed (2022)
  2. Tirzepatide versus Semaglutide in Type 2 Diabetes — NEJM / PubMed (2021)
  3. Efficacy of tirzepatide in type 2 diabetes (SURPASS-1 trial) — Lancet / PubMed (2021)
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Tirzepatide, 10mg, lyophilized powder, CAS 2023788-19-2, >99% HPLC purity, research reference material

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Quality Certificates

Third-party laboratory Certificates of Analysis (COA) for every PEPTEX peptide

Why transparency matters

Research-grade peptides require verified identity and purity. An unverified vial is an unverified experiment.

Each order ships with a physical COA and batch-specific QR code.

Testing methodology

HPLC (purity + impurities), mass spectrometry (molecular mass confirmation), appearance check, and moisture content. Reports issued by EU-based accredited laboratories.

Every batch of PEPTEX peptides is tested by an independent accredited laboratory. All batches meet or exceed ≥99% purity — no exceptions.

Browse certificates by product

Frequently asked questions

What does ≥99% purity mean?

It means that at least 99% of the powder is the target peptide.

How is the batch linked to the COA?

Every vial carries a batch number matching the COA.

Can I verify the COA independently?

Yes — each COA carries the issuing laboratory name and report ID.

Buy verified peptides with published lab results

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