P2
Independent Quality Score
A+Grade
99.5%
Avg purity
100%
Pass rate
1
Tests
Purity across batches99.5%–99.5%
Purity trend appears after the second batch test.
Cognitive & NootropicGrade A+Sold as 10-vial kits
PE 22-28
Spadin-derived peptide studied for neuroplasticity research.
Choose your source— compare price & verified purity
$84.0010mg × 10 vials · Lanyun
Quantity (kits)
1
Dose range
250-500 mcg
Frequency
daily
Cycle
4 wks
Reconstituted
varies
For Research Use Only. All products are sold as research chemicals for in-vitro laboratory study. Not for human consumption, medical, veterinary, or household use.
About PE 22-28
PE 22-28 is a peptide derived from spadin studied for TREK-1 inhibition and neuroplasticity/mood research endpoints.
Reconstitution Calculator
Pre-filled for the 10mg kit — adjust to match your potency and protocol.
Reconstitution Calculator
Concentration
5 mg/mL
Draw to
5 units
0.05 mL
Doses per vial
40
Days supply
40 days
Draw point on 100-unit syringe5 u
020406080100
Units shown assume a standard U-100 insulin syringe (100 units = 1 mL). Figures are for research dilution math only — not dosing guidance.
Test History
Every independent result we've received for PE 22-28.
| Batch | Lab | Date | Purity | Result | COA |
|---|---|---|---|---|---|
| PE10-B-202604-147 | Finnrick | Apr 2, 2026 | 99.5% | Pass | View |