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Retatrutide LY3437943 – Mannitol-Free Research Peptide

(2 customer reviews)

Retatrutide (GLP-3) research vials in 10mg/15mg/20mg/30mg. ≥99% purity (HPLC/MS), batch COA. Single vials or 10-packs. U.S. cold-ship. Research Use Only.

From $85.00

  • Third-Party Lab Verified

  • Mannitol-Free Preparation

  • Fast, Discreet Shipping

product description

Buy Retatrutide (GLP-3) — Research Vials 10mg / 15mg / 20mg / 30mg

BulkGLP supplies Retatrutide (LY3437943) for laboratory research. As a GLP-1/GIP/Glucagon triple-agonist, Retatrutide is used in advanced metabolic studies. Every lot is third-party tested (HPLC/MS) to confirm ≥99% purity and is prepared without mannitol, buffers, or fillers for precise, reproducible work.

For Laboratory Research Use Only. Not for human or veterinary use.


Select Vial Size & Pack

Choose single research vials or cost-efficient multi-vial packs. (Use your store’s selectors here.)

  • Single Vials: 10mg, 15mg, 20mg, 30mg
  • Multi-Vial Packs: 10×10mg, 10×15mg, 10×20mg, 10×30mg
Prefer lyophilized powder for larger lots? See Retatrutide Powder.

What is Retatrutide (LY3437943)?

Retatrutide is a triple-agonist peptide designed to engage three metabolic pathways:

  1. GLP-1 receptor — widely studied for effects on glucose handling and appetite regulation.
  2. GIP receptor — contributes to insulinotropic activity and metabolic signaling.
  3. Glucagon receptor — investigated for roles in energy expenditure and lipid metabolism.

Retatrutide has been evaluated in early clinical research; laboratories use it to explore mechanisms relevant to metabolic regulation. (RUO.)


Retatrutide vs. Semaglutide vs. Tirzepatide

Feature Retatrutide Tirzepatide Semaglutide
Mechanism Triple-agonist Dual-agonist Single-agonist
Targets GLP-1, GIP, Glucagon GLP-1, GIP GLP-1
Notes Investigated for combined metabolic pathway engagement. Synergistic incretin signaling. Selective GLP-1 activity.

Why Buy Retatrutide from BulkGLP

  • ≥99% Purity: Independent HPLC/MS; batch-specific COA supplied.
  • Mannitol-free: No fillers, buffers or excipients—pure lyophilized peptide.
  • Reliable Supply: From single vials to 10-packs with consistent lots for longitudinal work.
  • U.S. Cold-Ship: Secure, discreet fulfillment with temperature-appropriate packaging.

Format & Handling (Vials)

  • Form: Lyophilized peptide in sealed, sterile research vials.
  • Fill amounts: 10mg, 15mg, 20mg, or 30mg per vial (select size above).
  • Reconstitution: Use bacteriostatic water or suitable research-grade solvent. Add gently along the vial wall; swirl—do not shake vigorously.

Product Specifications

  • Name: Retatrutide
  • Synonyms: LY3437943, GLP-3 triple-agonist
  • Purity: ≥99% (HPLC/MS, third-party)
  • Appearance: White lyophilized powder in vials (collapsed/fragmented cake possible; normal for pure peptide)
  • Molecular Formula: C₂₂₁H₃₄₂N₄₆O₆₈
  • Molecular Weight: ~4731.33 g/mol
  • Preparation: No mannitol, buffers, or fillers

Storage & Stability

  • Before reconstitution: ≤ −20 °C for long-term storage; protect from moisture/light.
  • After reconstitution: 2–8 °C (36–46 °F); minimize freeze–thaw cycles; protect from light.

Frequently Asked Questions

Is Retatrutide the GLP-3 peptide?

Yes. Retatrutide (LY3437943) is commonly referenced as the GLP-3 triple-agonist in research literature.

Do different vial sizes have different purity?

No. All vials meet the same ≥99% purity specification; verify with the supplied batch COA.

How do I reconstitute the vials?

Introduce bacteriostatic water or a suitable solvent slowly along the glass wall and gently swirl until dissolved. Avoid vigorous agitation.

Where can I get powder instead of vials?

See the separate product page: Retatrutide Powder.


Legal and Safety

All products, including Retatrutide (LY3437943), are supplied strictly for in-vitro laboratory research. They are not for human or veterinary use. By purchasing, you confirm appropriate qualifications and adherence to applicable regulations and safety protocols.



additional information

Weight 0.1 lbs
Dimensions 2 × 2 × 2 in
Format

Single Vial, Multi-Vial Pack

Size

5mg, 10mg, 15mg, 20mg, 30mg, 5mg ×10, 10mg ×10, 15mg ×10, 20mg ×10, 30mg ×10

product reviews

2 reviews for Retatrutide LY3437943 – Mannitol-Free Research Peptide

  1. Raptor14

    This is the only product I’ve found to not give me crazy fatigue. I am super happy with my purchases. I’ll continue doing business with them.

  2. Katy

    This has TOTALLY stopped my cravings!! I had such a terrible sweet tooth, especially the days leading up to shark week. I had plateaued in my weight loss journey and felt totally stuck. I started using Retatutrid and have dropped 18 pounds in 30 days! I’m so happy with the results, I HIGHLY recommend!!

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