Buy Retatrutide Pen – Research Peptide | PEPTEX

Buy Retatrutide Pen – Research Peptide | PEPTEX

Lipidated 36-residue synthetic peptide. CAS 2381089-83-2. Purity ≥98% by HPLC and MS. Contains a C20 fatty diacid chain conferring albumin-binding properties and prolonged half-life. Supplied as a sterile lyophilised powder in a sealed borosilicate glass vial with a sterile diluent vial. Intended for laboratory and research purposes only. Store at −20°C; protect from light and moisture.

Price: EUR | Brand: PEPTEX | In Stock | EU-wide delivery, 3-5 business days

Rating: 4.9/5 (454 reviews)

Customer Reviews

Isabel — ★★★★★
Fourth pen. Every batch is identical. The reta effect on metabolism is something you can measure (higher resting energy expenditure) and the pen format means I never skip a dose. Peptex quality is perfect.
Astrid L. — ★★★★★
Switched from the vial to the pen mid-cycle. Identical effects, zero disruption. The pen format makes sense especially for retat which requires careful weekly dosing. No room for reconstitution errors.
sam.w — ★★★★★
Ordered both the tirze and retat pens from peptex. Tried tirzepatide first for 3 months, then switched to retat. The pen format made the transition seamless. Both pens are excellent quality.
Damien — ★★★★★
Third pen order. The triple agonist mechanism (GLP-1 + GIP + glucagon) delivers results that tirze alone couldn't match for me. Having it in a pen format removes the last friction point. Peptex quality is excellent.
Eva M. — ★★★★
Effective product in a convenient format. The thermogenic effect from the glucagon component is more noticeable than with tirzepatide pen. Minor: wish the pen capacity was slightly larger for higher dose phases.

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Research References

  1. Triple-Hormone-Receptor Agonist Reta (RTT) for Obesity — Phase 2 Trial — NEJM / PubMed (2023)
  2. Reta (RTT), a GIP/GLP-1/glucagon agonist, for type 2 diabetes — Phase 2 — Lancet / PubMed (2023)
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Reta — GLP-1/GIP/GCGR Triple Peptide Research Kit, 30mg, lyophilized powder, CAS 2381089-83-2, >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.

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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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