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Neurocognitive Research
PE-22-28
Lyophilized in the USA
PE-22-28 is a research peptide studied in models involving neuroactive signaling, mood-related pathway research, stress-response systems, cognitive pathway models, and central nervous system regulation.
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54.99
Quantity
1
$0.00$49.99
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Your purchasing batch
FX35
Certificate on record · 3 lots published
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Tracked delivery on every order
Per-batch COA access
Every order ships with certificate access for its lot
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Commonly Researched With
The compounds researchers order most, by verified order volume.
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Verified test results
Every batch, independently verified.
Each batch is analyzed by an independent third-party laboratory before release. The lots below were tested by Chromate and ILS Laboratories. Below is the report for lot FX35, summarized from the certificate the lab published.
ILSPASS
ILS Laboratories
Independent · ISO/IEC 17025 accredited
99.58%
Purity by HPLCSPEC ≥ 95.0%
Lot
FX35
Tested
Jun 1, 2026
Labeled
10mg
Measured
10.61mg
ISO 17025 accreditedFentanyl free3 lots on record
View the signed certificate →
Certificate results✓ 4 passed · 1 reported
Appearance
Per certificate
Good
PASS
Identity
HPLC
Confirmed
PASS
Purity
HPLC
99.58%
SPEC ≥ 95.0%
PASS
Net peptide content
HPLC
10.61mg
REPORT ONLY
REPORTED
Fentanyl screen
Per certificate
Not detected
PASS
Every batch on record
Every lot we have published for this compound, grouped by the lab that tested it, newest first. Open any certificate below, exactly as the lab released it.
ILS Laboratories2 certificates
Chromate1 certificate
Side by side
How Disguised compares.
Disguised
Typical supplier
Per-batch third-party COA
Yes
Rarely provided
ISO 17025 lab testing
Yes
Inconsistent
HPLC purity verified
Yes
Often unverified
Sterility tested
Yes
Rarely
Endotoxin tested
Yes
Rarely
Heavy metal tested
Yes
Rarely
Conformity testing
Yes
Not standard
Fentanyl screening
Yes
Not standard
Made & tested in the USA
Yes
Often overseas
Discreet, tracked shipping
Yes
Varies
Technical specifications
Compound Information
Read the PE-22-28 research guidePeptide storage guideHow to reconstitute peptidesStorage Requirements
Stability information.
Avoid freeze/thaw cyclesProtect from lightRefrigerate after reconstitution
−20°C
Lyophilized powder, as shipped
The most stable form. Store cold and protected from light until it is reconstituted.
2–8°C
After reconstitution
Refrigerate once reconstituted and keep it protected from light.
Peer-reviewed literature
The research behind this compound, cited in full.
Every reference below is a published, peer-reviewed record, linked to its PubMed entry. Provided for educational reference only - not product claims.
Important research notice
Not for human, veterinary, or food use. This product is sold exclusively for laboratory research purposes. It is not intended to diagnose, treat, cure, or prevent any disease, and has not been evaluated by the FDA.
All referenced publications and registries are sourced from peer-reviewed journals and official registries. They are provided for educational reference only and are not product claims.
By purchasing, you confirm you are a qualified researcher and will handle this product in accordance with all applicable laws and regulations.
Ready when you are
Nothing ships without paperwork. Every lot is on record.
The lot on this page links to the signed certificate for that batch.
3Lots on record
99.29%HPLC purity, latest lot
17025ISO/IEC accredited lab