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
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Exchange/Return Notes
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SKU: 46910353974

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4.5 ★★★★★
Based on 14 reviews
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Product Reviews
M
Verified Purchase
MayGen
Pawtucket, US
★★★★★ 4
Very nice but -
Color: Black, Size: 64 oz
Got it today. Just put it to use and made some cold brew. Looks nice and sturdy and doesn’t leak. Has a great large capacity to make a lot of cold brew. Lid closure is great and seals nicely. Very easy to use and user friendly. The plastic material is very thick feeling so that tells me it will withstand quite a bit. I like it so far. My only issue is as soon as I opened the box and pulled the spoon out, it was broken. The bottom stand is completely broken and barely stands up. So that’s disappointing. Otherwise, seems very nice.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 9, 2026
U
Verified Purchase
User9188
West Palm Beach, US
★★★★★ 5
Reliable and Easy to Use Cold Brew Coffee Maker
Color: Black, Size: 40 oz, Color: Black, Size: 40 oz
This cold brew maker is easy to use and does the job well. I get smooth coffee every time without bitterness. The size is good and fits in my fridge without taking much space. The filter works well and keeps most of the grounds out of the coffee. Cleaning is simple and does not take much time. The build feels solid for daily use. I like that I can control how strong the coffee is by changing the water and coffee ratio. One thing to know is that you need coarse ground coffee for best results. (I use Bizzy coffee) Letting it steep longer makes the flavor better. It is not insulated, so you should keep it in the fridge while brewing.
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Reviewed in the United States on February 7, 2026
M
Verified Purchase
Mackenna Gilhooly
Boise, US
★★★★★ 5
Best cold brew brewer out there
Color: Black, Size: 40 oz
One of my favorite purchases in a long time. This coffee maker is just a perfect size and it can be put in the fridge in any direction, on its side, on its top, whatever. It does not leak and it's very easy to clean. Just a superior product all the way around.
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Reviewed in the United States on March 25, 2026
S
Verified Purchase
Scott Taylor
Chelsea, US
★★★★★ 5
Great cold brew maker!
So far this has been a big improvement from a different brand cold brew maker I had. It is simple and easy to used doesn’t leak. The coffee comes out tasting great! It has a smart design that works well. It’s a great deal for how well it works. It is big enough to last all week but not take up to much space in the fridge.
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Reviewed in the United States on October 27, 2025
F
Verified Purchase
Finn
Los Angeles, US
★★★★★ 1
Air gets trapped in the filter so it won’t fully steep
Color: Black, Size: 40 oz
Filter doesn’t let air out. It’s weird about all these positive reviews bc I tried cold brewing tea two times overnight but the filter holes are so small that basically it traps a large air bubble inside with the tea leaves. The water was barely steeped. It was weird enough to the point where I thought there must be a clear film on the filter that I hadn’t removed. When I loosen the lid all do the air rushes out and it fills w water, but when you tighten the lid any air inside with your grounds/leaves is trapped and prevents steeping. I kept thinking it was me based on all of these positive reviews but I could not prevent the massive about of air from getting trapped in the filter. If they made the holes bigger (not too big to let grounds out but currently you could mistake it for plastic film) then it would’ve been perfect. Nice size and about what I’d drink in a day or so. Change the filter hole size to let air flow out and I’ll buy it back!
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Reviewed in the United States on May 16, 2026

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