DoseVault
Cognitive Compound

Glycyl-L-Glutamine (Beta-endorphin 30-31)

Beta-endorphin C-terminal dipeptide investigated for opioid-tolerance modulation and CNS effects.

Scientific Overview

Glycyl-L-glutamine (Gly-Gln, beta-endorphin 30-31) is the C-terminal cleavage product of beta-endorphin. Animal studies (Goldstein, Unterwald, and others) suggest it modulates opioid tolerance and respiratory drive without classical opioid-receptor binding. Best supported as a research tool rather than a therapeutic; no clinical indication.

Key Research Benefits

  • ✓Modulates opioid tolerance (preclinical)
  • ✓Possible respiratory drive
  • ✓Studied in addiction models

Potential Side Effects

⚠Limited human data
⚠Unknown chronic effects

Research Protocols

Common Dosages

Research

Not established
N/A

“Animal studies 1-10 mg/kg”

Note: Dosages listed are common research protocols found in peer-reviewed literature and clinical trials. Individual results and requirements may vary significantly in a research context.

Dose Calculator

🧮 Peptide Reconstitution Calculator

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mcg

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10 Units

or 0.10 mL on a U-100 syringe

Concentration:2.50 mg/mL
Peptide per Unit:25.00 mcg/unit
*Always double-check your calculations. This tool is for educational purposes only.

Explore Glycyl-L-Glutamine (Beta-endorphin 30-31)

Where to source

Vendors with public COAs that stock this category. Affiliate links are disclosed.

  • Limitless Life Nootropics
    FL-based research-peptide supplier with Janoshik third-party COAs and a public affiliate program at ~20%.
    COA: JanoshikAffiliate disclosed
    View vendor →
  • SwissChems
    60+ peptide catalog with Janoshik COAs; weekly affiliate payouts.
    COA: JanoshikAffiliate disclosed
    View vendor →
  • Amino Club
    EU/US-facing vendor with a 20% first-order / 10% recurring affiliate model.
    COA: Third-partyAffiliate disclosed
    View vendor →

Molecular Profile

linear
C7H13N3O4
2 AA Sequence

Quick Reference

Status
Research Compound
Category
Cognitive
Common Dosage
Not established
N/A

Strictly for research purposes. Not for human consumption.

Related tools

Medical Disclaimer

Information provided on DoseVault is for educational and research purposes only. This website does not advocate for the human use of peptides. Peptides are currently sold as research chemicals and are not FDA-approved for human consumption. Always consult a licensed medical professional before considering any protocol.