PE-22-28 is a research compound. It is not approved by the FDA or any regulatory body for human use. This article is for educational and informational purposes only. Nothing here constitutes medical advice. Consult a qualified physician before considering any peptide use.
Lyophilized (freeze-dried) PE-22-28 should be stored at -20°C for long-term stability. Once reconstituted with bacteriostatic water, store at 2-8°C (refrigerated) and use within 4-6 weeks. Never freeze reconstituted peptides.
How Do You Store PE-22-28?
Proper storage is critical for maintaining PE-22-28's potency and safety. As a Ion channel inhibitor peptide, PE-22-28 is sensitive to heat, light, and moisture — improper storage can render it ineffective or harmful.
How Do You Store Lyophilized PE-22-28?
Unreconstituted (freeze-dried) PE-22-28: Store at -20°C (standard freezer) for maximum shelf life of 12-24+ months. Keep the vial sealed and away from moisture.
Room temperature storage is acceptable for short periods (shipping) but degrades potency over weeks. Refrigerator (2-8°C) storage extends this to several months.
How Do You Store Reconstituted PE-22-28?
After mixing with bacteriostatic water: Store at 2-8°C (standard refrigerator). Use within 4-6 weeks for optimal potency.
Never freeze reconstituted PE-22-28. Freezing and thawing damages the peptide structure. The bacteriostatic water's benzyl alcohol preservative is what allows the 4-6 week window — sterile water would give you only days.
Keep the vial upright and away from the refrigerator door (temperature fluctuations from opening/closing).
How Do You Know if PE-22-28 Has Gone Bad?
Reconstituted PE-22-28 should be clear and colorless. If you see cloudiness, particles, or discoloration — discard it. These indicate bacterial contamination or peptide degradation.
If stored properly, degradation is gradual and may not be visually apparent. This is why the 4-6 week window for reconstituted peptides exists.
Can You Travel With PE-22-28?
Lyophilized PE-22-28 can be shipped with cold packs and insulation. For short trips, a small cooler bag with an ice pack maintains adequate temperature.
Reconstituted PE-22-28 is more temperature-sensitive and should be kept refrigerated during travel if possible.
Bottom Line on PE-22-28 Storage
Freeze-dried: -20°C, sealed, 12+ months. Reconstituted: 2-8°C, use within 4-6 weeks, never freeze. Source from vendors who ship with proper cold-chain packaging.
Complete Guide
PE-22-28 : Benefits, Dosage, Side Effects & Research
Related Reading
- PE-22-28 Dosage Guide
- PE-22-28 Benefits
- PE-22-28 Side Effects
- PE-22-28 Stacking Guide
- PE-22-28 Cycle Guide
- PE-22-28 Research
Calculate Your PE-22-28 Dose
Use our free peptide dosing calculator to get exact reconstitution math and syringe units for PE-22-28.
Open Calculator →Research-Grade Sourcing
If you're going to research PE-22-28, source matters. These are the suppliers WolveStack has vetted for purity and third-party testing.
Frequently Asked Questions
What is PE-22-28?
PE-22-28 (PE-22-28 (spadin analog, TREK-1 inhibitor)) is a Ion channel inhibitor peptide. Synthetic shortened analog of spadin with enhanced TREK-1 potassium channel specificity and brain stability. It is researched for rapid antidepressant effects (4 days vs 4-6 weeks for SSRIs), hippocampal neurogenesis, enhanced synaptogenesis.
What is the recommended PE-22-28 dosage?
Common dosages: 100-500 mcg daily administered once daily via subcutaneous injection (proposed). Cycle length: 4-8 weeks. Half-life: 14-23 hours in rodents. Use our peptide calculator for exact reconstitution math.
What are the side effects of PE-22-28?
Minimal toxicity in animal models. Potential hypertension from enhanced monoamine activity. Human safety unknown. GABAergic disruption possible.
Is PE-22-28 safe?
PE-22-28 has shown a preliminary safety profile in research. Not FDA-approved. Investigational research peptide only. All research should follow appropriate safety protocols.