SKU: 46910353974

Pe-22-28

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Description

Pe-22-28PE 22 28: Ultra Pure Research Peptide Verified Purity & Trusted Results Premium Quality Research Peptide 95% Verified Peptide Grade Quality for Superior Laboratory and Research Applications Scientifically Validated Comprehensive Certificate of Analysis (COA) & HPLC Precision Testing for Quality Assurance Preferred by Academic & Commercial Laboratories Globally Chemical Information: Compound Name: PE 22 28 Synonyms: Spadin Analogue, Propeptide of the

PE-22-28: Ultra-Pure Research Peptide – Verified Purity & Trusted Results

🔬 Premium Quality Research Peptide – ≥95% Verified Peptide-Grade Quality for Superior Laboratory and Research Applications
📜 Scientifically Validated – Comprehensive Certificate of Analysis (COA) & HPLC Precision Testing for Quality Assurance
🌍 Preferred by Academic & Commercial Laboratories Globally


Chemical Information:

  • Compound Name: PE-22-28
  • Synonyms: Spadin Analogue, Propeptide of the Propeptide of Saposin C, GVSWGLR
  • CAS Number: Not currently assigned (Research Analogue: PE-22-28)
  • Molecular Formula: C₃₅H₅₅N₁₁O₉
  • Molecular Weight: 773.89 g/mol
  • Sequence: Gly-Val-Ser-Trp-Gly-Leu-Arg (GVSWGLR)
  • Purity: ≥95% Peptide-Grade (HPLC Confirmed)

Scientific Overview:

PE-22-28 is a synthetic peptide derived from the propeptide of Saposin C, comprising the amino acid sequence GVSWGLR. It acts as a selective modulator of the prosaposin receptor, GPR37, and is extensively studied in neuroscience and neurobiology research, particularly relating to its role in neuronal survival, neuroprotection, neuroregeneration, and modulation of depressive behaviours in experimental settings.

Due to its ability to influence cellular signalling and neurological pathways, PE-22-28 is of significant interest in studies focused on neurodegeneration, neuronal cell viability, and G protein-coupled receptor (GPCR) signalling mechanisms.


Key Scientific References & Literature:


Why Choose Our PE-22-28?

Precision HPLC Analytical Testing – Ensuring verified ≥95% peptide-grade purity
Comprehensive Certificate of Analysis (COA) – Scan QR code for instant product verification
Material Safety Data Sheet (MSDS) – Available for responsible handling and compliance
UK-Based Laboratory Production – Rigorous quality assurance and stringent laboratory protocols
Rapid, Secure Express Delivery – Ensuring timely dispatch and protective packaging
Independent Third-Party Testing – Additional verification available upon request


For Research Use Only

Our PE-22-28 is strictly intended for scientific research and laboratory use only. It is explicitly not approved for human consumption or therapeutic use.

Advance your scientific investigations confidently with our meticulously synthesised PE-22-28 (GVSWGLR), ensuring consistent, reliable, and reproducible research outcomes.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 46910353974

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tjw
Belleville, US
★★★★★ 3
Way too narrow
Size: 9.5 Wide, Color: Burgundy Polished Full Grain
I ordered a wide in this shoe, but it was still way too narrow. I had to return them. Otherwise, it looked like a nice quality shoe.
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Reviewed in the United States on February 12, 2026
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BetterEveryDay
Waukegan, US
★★★★★ 5
I usually wear 11.5's, but I buy 1/2 size smaller to accommodate for stretch. Leather relaxes.
Size: 11, Color: Burgundy Polished Full Grain
5 STARS: These shoes are awesome. I keep coming back for more. I have major foot problems, have tried all kinds of shoes, orthotics, and inserts... but believe it or not, these shoes work better than any of that stuff. I wear them daily. I buy lots of them, for home, for church, and I'm getting my first pair of J&M boots today, for winters in Indiana... Brrrr
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Reviewed in the United States on December 18, 2025
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Doc
Carnegie, US
★★★★★ 5
Great price great shoe
Size: 12, Color: Burgundy Polished Full Grain
Excellent shoe. Tried the Sebago penny loafer and the sizing was ridiculous. These J and M are sized perfectly. I’ve had them before and they wear like iron. Very comfortable right out of the box.
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Reviewed in the United States on May 23, 2026
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roger mendes
Alexandria, US
★★★★★ 5
One of the best shoes
Size: 9.5, Color: Black Polished Full Grain
Outstanding. Fashionable, most comfortable and good construction. No sines of use after quite some time. Highly recommended.
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Reviewed in the United States on March 21, 2026
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xyz
Louisville, US
★★★★★ 4
Quality shoe but with a slight squeak.
Size: 10 Wide, Color: Burgundy Polished Full Grain
Nice shoes with the classic Penny Loafer design. Fit was better than another brand I tried. Only reason not 5 starts is disappointment due to a slight squeak at times when walking.
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Reviewed in the United States on August 11, 2025

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