cognitive
PE-22-28
Synthetic antidepressant peptide
Cheapest offer
$4.00/mg
8 vendors tracked8 live pricesLast crawl: 2026-09-09 00:02 UTC
About
A seven-residue peptide derived from the spadin sequence (SORT1 fragment), studied for rapid-acting antidepressant effects via TREK-1 channel blockade.
Also known as: Peptide from brain fragment
Reconstitution calculator
!
For research purposes only. Not for human consumption. Always verify calculations independently.
Cost-per-dose recalculates as you adjust the calculator above.
PE-22-28 · 5mg
1 vendors
B
Operational$49.99
$10.00/mg· $2.50/dose
In stock◎ Best $/mg
| Vendor | Grade | Risk | Price | $/mg | Trend | $/dose at 0.25 mg | Stock | |
|---|---|---|---|---|---|---|---|---|
| Welli Labs US | B | Operational | $49.99 ◎ Best $/mg | $10.00 | $2.50 | In stock | Buy with code → |
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Last crawl 2026-09-09Sort:
2026-09-09PE-22-28 · 8mg
3 vendors
Operational
$54.00
$6.75/mg· $1.69/dose
In stock◎ Best $/mg
B-
Operational$60.00
$7.50/mg· $1.88/dose
In stock▲ 11.1% vs best
Watch
$60.00
$7.50/mg· $1.88/dose
In stock▲ 11.1% vs best
| Vendor | Grade | Risk | Price | $/mg | Trend | $/dose at 0.25 mg | Stock | |
|---|---|---|---|---|---|---|---|---|
| Core Peptides US | A | Operational | $54.00 ◎ Best $/mg | $6.75 | $1.69 | In stock | Buy with code → | |
| Atomik Labz US | B- | Operational | $60.00 ▲ 11.1% | $7.50 | $1.88 | In stock | Visit → | |
| Solution Peptides US | B- | Watch | $60.00 ▲ 11.1% | $7.50 | $1.88 | In stock | Visit → |
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Last crawl 2026-09-09Sort:
2026-09-09PE-22-28 · 10mg
4 vendors
Operational
$39.99
$4.00/mg· $1.00/dose
In stockOn sale
Watch
$44.99
$4.50/mg· $1.12/dose
In stock▲ 12.5% vs best
B-
Operational$45.00
$4.50/mg· $1.13/dose
In stock▲ 12.5% vs best
B
Operational$49.00
$4.90/mg· $1.23/dose
In stock▲ 22.5% vs best
| Vendor | Grade | Risk | Price | $/mg | Trend | $/dose at 0.25 mg | Stock | |
|---|---|---|---|---|---|---|---|---|
| Double R Labs US | B | Operational | $39.99 On sale | $4.00 | $1.00 | In stock | Buy with code → | |
| Modern Research Peptides (.net) US | B- | Watch | $44.99 ▲ 12.5% | $4.50 | $1.12 | In stock | Visit → | |
| Purus Peptides US | B- | Operational | $45.00 ▲ 12.5% | $4.50 | $1.13 | In stock | Visit → | |
| Ion Peptide US | B | Operational | $49.00 ▲ 22.5% | $4.90 | $1.23 | In stock | Visit → |
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Last crawl 2026-09-09Sort:
2026-09-09Research use only. The compounds listed on this page are not approved for human use through research-chemical channels. Nothing on this page is medical advice. Consult a qualified clinician before considering any peptide protocol. See affiliate disclosure and our scoring methodology.
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