§ Same category · Cognitive peptides
N-Acetyl Semax Amidate vs PE-22-28
Side-by-side price comparison across every tracked vendor. Updated every 4–6 hours.
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N-Acetyl Semax Amidate
3
vendors tracked
from $2.40/mg
PE-22-28
8
vendors tracked
from $4.50/mg
◎ Cheapest $/mg:N-Acetyl Semax Amidate at $2.40/mg
N-Acetyl Semax Amidate
Acetylated amidated Semax
No current listings at 5mg.
PE-22-28
Synthetic antidepressant peptide
B
Operational$49.99
$10.00/mg
In stock◎ Best $/mg
| Vendor | Grade | Risk | Price | $/mg | Trend | Stock | |
|---|---|---|---|---|---|---|---|
| Welli Labs US | B | Operational | $49.99 ◎ Best $/mg | $10.00 | In stock | Buy with code → |
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Last crawl 2026-05-09Sort:
2026-05-09About N-Acetyl Semax Amidate
A modified Semax with N-terminal acetylation and C-terminal amidation for improved stability in research buffers.
About PE-22-28
A seven-residue peptide derived from the spadin sequence (SORT1 fragment), studied for rapid-acting antidepressant effects via TREK-1 channel blockade.