Research Better, Live Better
Discover premium research peptides manufactured under strict quality standards. Every batch is independently tested to ensure exceptional purity, consistency, and reliability for laboratory research.
Rigorous Quality Control
Liquid chromatography and mass spectrometry ensure purity >99%
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Same Day Shipping from USA
Take advantage of convenient payment methods and expedited shipping
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Money Back Guarantee
We stand behind our products and offer a 30 day full refund guarantee
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Who We Serve
B2B Research Institutions
Dedicated to innovation and quality, Kynex Peptides is a preferred choice among peptide manufacturers. We do not sell to the general public, wellness clinics, or individuals.
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Know More About Kynex Peptides
At Kynex Peptides, our mission is to provide laboratories and researchers with the highest-quality peptides possible. Multiple rounds of High-Performance Liquid Chromatography isolate our products by removing contaminating reagents and byproducts of synthesis. As a final measure of peptide accuracy, our analytical lab uses mass spectrometry to verify the theoretical molecular weight of each peptide. At Kynex Peptides, we lead the industry by offering the synthesis of ANY peptide desired. Contact us, and be sure to include the sequence and quantity desired.
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Our Mission
Quality, Transparency, and Speed
We make your research simple: Full testing, clear labeling, fast fulfillment, and responsive support.
Third Party Tested
Products are tested by trusted labs. COAs are available for each product, and every item is labeled with a QR code that links directly to its COA.
Quality Guarantee
All of our products test at pharmaceutical grade purity (>99%). We stand behind each product and offer a 30-day money back guarantee.
Same Day Shipping
Most orders placed before 3 PM Eastern Time (and before noon on Saturdays) ship the same day. Affordable 2-day air options are available, with free shipping promotions.
Easy Customer Service
No hassle and no runaround. We reply quickly during business hours and respond promptly outside of them. You won’t wait hours or days for a reply. Try our chat feature
Research-Grade Peptides | ≥99%
Purity ProFound Peptides Our Premium Products Scientifically formulated peptides with the highest purity standards for Precise Research Application
Frequently Asked Questions
Are your products third-party tested?
Yes. Every product is tested by an independent third-party laboratory based in the U.S. and ships with its own Certificate of Analysis (COA). All new batches undergo strict 8x testing. Each product page shows the exact batch that is shipping and that you will receive. Each vial has a QR code that links straight to the COA.Â
Do you offer a guarantee?
Yes. We back every order with a 30-day, no-questions-asked guarantee on all unopened products. If something arrives wrong, send it back. We will refund the order or issue store credit.
If a seal has been broken, we still work with you. We review opened-product issues case-by-case and find the right resolution together.
How fast do you ship?
Most orders go out the same day. Orders placed before 3:00 PM Eastern, Monday through Friday (noon on Saturday) ship that day. We do not ship on Sundays or holidays.
Every order ships with Expedited Shipping at no upcharge, which typically arrives within 2 to 3 business days from the date of the order. Overnight options are available at checkout.
What if my package gets lost, stolen, or delayed?
We do our best to make sure our customers are taken care of when the unfortunate circumstance happens. We will always take care of you in the end.
For your convenience, and to expedite resolution, we offer ezShip Package Protection at checkout.Â
Do you offer coupons or discounts?
Yes. We post all of our public sales to our promotions page. The best deals are always sent to our newsletter subscribers first.
How should I store my products?
Storage depends on whether the vial is sealed (lyophilized) or has been reconstituted.
Sealed, lyophilized
Short termCool, dark place
Long termFreezer
Reconstituted
AlwaysRefrigerate
AvoidLight, heat, freeze/thaw
Specific shelf-life windows vary by product. Check each product page for details.
Do your products come with instructions?
No. All of our products are sold strictly for research and laboratory use only. Because they are not intended for human use, we do not include dosing protocols or application instructions.
Product specifics like purity, mass, and COA data are listed on each product page and on the vial itself.