PE-22-28 10mg: What Researchers Need to Verify First
PE-22-28, also known as spadin, is a peptide of growing interest in neuroscience research, particularly in studies of mood regulation and neuronal signalling. If you’re comparing pe-22-28 10mg listings, there’s one thing to check before anything else: supplier data on this peptide isn’t consistent, and getting the sequence right matters for your study design.
Research use only. PE-22-28 is sold for laboratory research. It is not a medicine, supplement or food, and it is not intended for human or veterinary use.
What Is PE-22-28 (Spadin)?
PE-22-28 is a short peptide fragment studied as a TREK-1 potassium channel modulator, investigated in preclinical models for its role in mood-related and neuroprotective signalling pathways. It’s often referred to by its research nickname, spadin.
Important: verify the sequence before you buy. Checking two established UK suppliers side by side for this guide turned up two different sequences under the same product name:
| Source | Sequence | Formula | Molecular weight |
|---|---|---|---|
| Kensington Labs | Ala-Trp-Thr-Leu-Asn-Ser-Ala-Gly | C38H57N9O9 | 771.93 g/mol |
| UK-Peptides | Gly-Val-Ser-Trp-Gly-Leu-Arg (GVSWGLR) | C35H55N11O9 | 773.89 g/mol |
These are not the same molecule. This kind of discrepancy is common in less-standardised research peptides that lack a pharmacopoeial monograph, and it’s exactly why a batch-specific COA matters more than the marketing copy on a product page. Before you order or publish your own listing, confirm the sequence against the primary literature or a supplier’s independently verified COA, not just the product description.
What Is PE 22 28 10mg Used For in Research?
Searches for pe 22 28 10mg are typically from labs investigating:
- TREK-1 channel modulation and its downstream effects on neuronal excitability
- Preclinical models of mood regulation and antidepressant-like activity
- Neuroprotective signalling in central nervous system research
- Stress-response and emotional regulation pathways in animal models
These are areas of active preclinical interest, not established human outcomes. Any supplier implying otherwise, or using words like “the antidepressant,” is overstating the evidence and risks misleading buyers about a compound with no approved medicinal status.
How to Choose a Supplier: PE-22-28 10mg for Sale Checklist
When comparing pe-22-28 10mg for sale listings, check for:
- A stated, specific sequence — and cross-check it against other reputable sources rather than assuming it’s correct
- Batch-specific COA with HPLC purity (98% or higher is standard) and mass spectrometry confirming identity
- Molecular weight and formula consistency with the sequence claimed
- Physical form and storage conditions — typically lyophilised powder, stored at -20°C
- Manufacturing method disclosed — solid-phase peptide synthesis (SPPS) is standard and worth confirming
- Research-use labelling only — no dosing instructions or human-use claims
Buy PE-22-28 10mg Online: What to Expect From a UK Order
Before you buy PE-22-28 10mg online, a reliable UK supplier should offer:
- Tracked, next-day or 24-hour dispatch for UK orders
- Discreet, insulated packaging appropriate for a lyophilised peptide
- Published COAs, ideally searchable by batch or catalogue number
- Clear stock status — PE-22-28 is a lower-volume research compound and frequently shows as out of stock, so confirm availability before comparing prices
- Tiered bulk pricing, which is common across the category and can meaningfully lower cost per mg for larger orders
UK Pricing at a Glance
Prices for PE-22-28 vary by vial size and supplier, and given the sequence discrepancy above, are not always for a directly comparable product. As a general reference point at the time of writing, one UK supplier’s 5mg vial listed at £69.00 with bulk discounts down to roughly £48 per vial at 50+ units, while a 10mg vial from another supplier listed around £34.90–£59.90 depending on promotional pricing. Compare cost per milligram, and factor in which sequence and purity level you’re actually paying for.
[Insert your own 10mg pricing and stock status here.]
Storage and Handling
- Store lyophilised vials at -20°C, protected from light and moisture
- Reconstitute under sterile conditions using bacteriostatic water
- After reconstitution, store at 2-8°C and use within the timeframe stated on your COA (commonly up to 28 days)
- Minimise freeze-thaw cycles and follow HSE laboratory safety guidance throughout handling
Supplier Comparison at a Glance
| Factor | Strong supplier | Warning signs |
|---|---|---|
| Sequence data | Stated clearly, consistent with formula/weight | Vague or unverifiable sequence |
| Testing | Batch COA, HPLC + MS | No documentation |
| Stock | Genuine availability shown | Listed but frequently “out of stock” with no notice |
| Claims | Research-use wording, preclinical framing | “The antidepressant,” treatment language |
| Pricing | Transparent bulk tiers | Confusing or inconsistent discounting |
Frequently Asked Questions
Is PE-22-28 the same as spadin?
They’re used interchangeably in the research peptide market, but always confirm the exact sequence a specific supplier is providing, since this guide found real discrepancies between listings.
Why does PE-22-28 go out of stock so often?
It’s a lower-volume, more specialised research compound than peptides like BPC-157 or Semax, so batch runs are smaller and turnover is less predictable.
Can I use PE-22-28 for personal or therapeutic purposes?
No. It has no approved medicinal status and is sold strictly for laboratory research.
What should come with my order?
A labelled vial with a batch number, and access to that batch’s COA confirming sequence, purity and identity.
Final Thoughts
PE-22-28 is a genuinely interesting research compound, but this category rewards buyers who check the fine print. Confirm the sequence, request the COA, and compare suppliers on documentation, not just price.






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