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Research peptide · 5 mg / vial
4.5· 57 reviewsRetatrutide is supplied as a lyophilized research peptide at ≥99% HPLC purity with a batch-specific Certificate of Analysis (HPLC + mass spec). Molecular formula C221H342N46O68, MW ~4731 g/mol. For laboratory research use only — not for human or veterinary use.
Research use only. For laboratory research use only. Not for human consumption. By purchasing you affirm you are a qualified researcher acquiring this material for lawful laboratory research.
30-Day Reship Guarantee. If a vial arrives damaged or a lot doesn’t match its COA, we reship or refund — no questions asked.
Retatrutide · 5 mg
$50.00
Don’t forget
Bac.water — $12.00
Required to reconstitute a lyophilized peptide. Most orders add one.
Total for 3 items
$133.00$140.00
5% volume discount applied
Good to know
No slogans, no “trust us.” Here is the exact path every PepBiotics vial takes before its lot number ever reaches your label.
Solid-phase synthesis, then lyophilized to a stable powder. Each production run becomes a single traceable lot.
Reverse-phase HPLC quantifies purity and resolves impurities — the headline percentage on every certificate.
ESI mass spectrometry confirms the molecular weight matches the target sequence. No guessing what's in the vial.
In the literature
Studied pathways reported in preclinical and in-vitro research — not health claims or intended uses.
Used to study GLP-1 / GIP receptor agonism and downstream insulinotropic and appetite-regulation pathways in model systems.
Investigated in preclinical metabolic research on glucose handling and energy balance.
All products are intended strictly for laboratory research use only (RUO). They are not intended for human or veterinary use, and are not drugs, foods, cosmetics, or supplements. Not for diagnostic, therapeutic, or consumptive use of any kind.
Data sheet
2.50 mg/mL
Concentration
25.0 µg
Per unit (U-100)
0.100 mL
Draw volume
10.0
Syringe units
Planning aid for laboratory research only. Enter the net peptide content from the Retatrutide Certificate of Analysis for accurate concentrations. Not a recommendation for use in humans or animals.
For laboratory research use only. Reconstitute with bacteriostatic water or 0.9% sodium chloride under aseptic technique. Add diluent slowly against the vial wall and swirl — do not shake. Store the reconstituted solution at 2–8 °C and use within the study window. Not for injection into humans or animals.
Lab results
Every lot links to its full Certificate of Analysis from Aegis Bioanalytical Laboratories, an independent ISO/IEC 17025-accredited lab — each with a Report ID you can verify.
Lot PBL-24106
Mfg Jun 26, 2026 · Exp Jun 25, 2028 · Aegis Bioanalytical Laboratories
Lot PBL-24105
Mfg Feb 12, 2026 · Exp Feb 12, 2028 · Aegis Bioanalytical Laboratories
Questions
Reviews
Keep exploring
≥99% HPLCEvery result is signed by Aegis Bioanalytical Laboratories and published to the vault — searchable by the lot number on your label.
CAS number, sequence, molecular weight, HPLC purity, storage and reconstitution — every value on this page, in one branded PDF for your lab records.
Download spec sheet (PDF)
≥99% HPLC4.5
Based on 57 reviews
Most sources for this triple agonist have zero documentation. PepBiotech provided lot-specific HPLC and MS. That alone made it usable for our work.
No issues with the material itself. The label print was slightly faint on one vial but still fully legible.
Third order across two different lots and both COAs line up. Consistency matters more than a headline purity number, and they deliver it.
Purity and identity were on point. Only nitpick is the vial is a touch small for larger diluent volumes — minor.
Ran our own analytical HPLC on the lot and it agreed with the published COA within tolerance. Identity confirmed by MS. This is what a research supplier should be.
Ordered the 5-vial bundle — per-vial pricing is fair and the volume discount applied exactly as shown. Smooth checkout.
Lyophilized cake dissolved fully in bacteriostatic water with no cloudiness or residue. Net peptide content on the COA let me hit exact working concentrations.
Purity per COA was solid. It's an emerging compound so I appreciate the lot transparency. Vial is small but that's expected at this scale.
Ran our own analytical HPLC on the lot and it agreed with the published COA within tolerance. Identity confirmed by MS. This is what a research supplier should be.
Lyophilized cake dissolved fully in bacteriostatic water with no cloudiness or residue. Net peptide content on the COA let me hit exact working concentrations.
Dispatched same day, arrived sealed with legible lot numbers. The batch report was already in the vault before the package landed.
Purity and identity were on point. Only nitpick is the vial is a touch small for larger diluent volumes — minor.
Lyophilized cake dissolved fully in bacteriostatic water with no cloudiness or residue. Net peptide content on the COA let me hit exact working concentrations.
Purity and identity were on point. Only nitpick is the vial is a touch small for larger diluent volumes — minor.
Purity and identity were on point. Only nitpick is the vial is a touch small for larger diluent volumes — minor.
Dispatched same day, arrived sealed with legible lot numbers. The batch report was already in the vault before the package landed.
Third order across two different lots and both COAs line up. Consistency matters more than a headline purity number, and they deliver it.
Lyophilized cake dissolved fully in bacteriostatic water with no cloudiness or residue. Net peptide content on the COA let me hit exact working concentrations.
Lyophilized cake dissolved fully in bacteriostatic water with no cloudiness or residue. Net peptide content on the COA let me hit exact working concentrations.
Purity and identity were on point. Only nitpick is the vial is a touch small for larger diluent volumes — minor.
No issues with the material itself. The label print was slightly faint on one vial but still fully legible.
Third order across two different lots and both COAs line up. Consistency matters more than a headline purity number, and they deliver it.
Ordered the 5-vial bundle — per-vial pricing is fair and the volume discount applied exactly as shown. Smooth checkout.
No issues with the material itself. The label print was slightly faint on one vial but still fully legible.
