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2 Million+ Orders Shipped
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60-Day Risk-Free Guarantee
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99.6% Purity Tested
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Same-Day Shipping
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Free Shipping Over $150
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COA Included
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PE-22-28
In Stock
Cognitive
(2,490)

PE-22-28

Cognitive

$50.00$60.00
Free Shipping $100+30-Day Guarantee

Purchase Option

Category: Cognitive
Refills ship in 30 days.•Change or cancel anytime.

Spadin analog peptide for antidepressant and neuroplasticity research. TREK-1 channel modulator.

99%+
99%+ Purity
cGMP Certified
COA Available
FDA-Audited Facility
Third-Party Tested
USA
Made in USA
Same-Day Shipping
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Reviews

Customer Reviews

See what researchers are saying about PE-22-28

4.9

Based on 2,490 reviews

5
1,868
4
374
3
174
2
40
1
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Showing 3 of 2,490 reviews
Neuroscience Research LabVerified
January 16, 2025

Perfect for neurological studies

PE-22-28 has been crucial for our neurotrophic factor research. The purity allows for precise dosing in our cell culture experiments. Top-tier quality.

Dr. Emily WatsonVerified
January 11, 2025

Exceptional cognitive peptide

Our lab focuses on neuroprotection studies and PE-22-28 from HOA delivers consistent results. The N-acetylated form is perfectly synthesized.

CogniLabsVerified
January 6, 2025

Research-grade quality

We've tested PE-22-28 extensively. Mass spec analysis confirms the stated purity. Essential for our memory pathway research.

Why Choose Us
Why Choose Us

Why Choose Us

Premium quality backed by science and transparency.

99%

99%+ Purity

Every batch is independently tested by American third-party laboratories to ensure the highest purity standards in the industry.

cGMP Certified

Manufactured in FDA-audited, cGMP-certified facilities following pharmaceutical-grade quality control protocols.

Same-Day Shipping

Orders placed before 2PM EST ship same-day with temperature-controlled packaging for maximum peptide stability.

Support

Frequently Asked Questions

Everything you need to know about PE-22-28

All our peptides are tested to be 99%+ pure by independent third-party laboratories. We provide Certificates of Analysis (COA) for every batch, which you can view on each product page or request via email.
Store lyophilized (freeze-dried) peptides at -20°C to 2-8°C for maximum stability. Once reconstituted with bacteriostatic water, store at 2-8°C and use within 30 days. Keep away from direct sunlight and moisture.
Yes, we ship worldwide! Orders are processed same-day (before 2PM EST) and typically arrive within 3-5 business days domestically, 7-14 days internationally. We offer discreet, temperature-controlled packaging.
We accept all major credit cards (Visa, MasterCard, American Express, Discover), PayPal, and cryptocurrency (Bitcoin, Ethereum). All transactions are secured with 256-bit SSL encryption.
We offer a 30-day satisfaction guarantee. If you're not completely satisfied with your purchase, contact our support team for a full refund or exchange. Products must be unopened and in original packaging.
Yes, all our peptides are sold strictly for research and laboratory use only. They are not intended for human or veterinary use. Purchasers must be 18 years or older and agree to our terms of service.

Still have questions?

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PE-22-28 | House of Aminos | House of Aminos