Best price
GHK-Cu
At the brand’s own store
$39.95$44.95
−11%
−11%
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Research Peptides
Prices checked Oct 23, 2026Koi Peptides promo codes, deals and price drops
1 of 14 Koi Peptides products are marked down, up to 11% off, from $39.95.
14products tracked
1 of 14marked down
11%biggest markdown
For research purposes only. PricePoet lists prices and offers, not medical advice or claims about what any product does. Sellers describe these products as for research use only. Nothing here is a recommendation.
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Ways to save at Koi Peptides
New customers
20% off your first lab order
Details
Joining the researcher list gives 20% off a first order; the code is emailed after signing up.
Free shipping
Free shipping on US orders above $200
Min. spend $200
Details
Free standard shipping on US orders over $200; smaller orders ship for a flat $9.95.
On sale now
14 tracked
Good to know
- Shipping
- Standard USPS Priority is a flat $9.95, free on US orders over $200; UPS 2-Day Air is priced at checkout and UPS Next Day Air is priced at carrier cost.
- Returns
- A product that does not match its COA on independent retest is replaced or refunded; returns of opened vials for other reasons are not accepted. Damaged or wrong items must be reported within 48 hours of delivery with photos.
- Ships from
- Austin, TX and Long Beach, CA warehouses
Questions
How much does shipping cost at Koi Peptides?
The seller lists standard USPS Priority at a flat $9.95, free on US orders over $200. UPS 2-Day Air is priced at checkout and UPS Next Day Air at carrier cost.
Does Koi Peptides ship internationally?
The seller says international orders need pre-approval, and that it may decline to ship certain items to specific destinations or buyers. It says the recipient pays duties and VAT.
What is Koi Peptides' return policy?
The seller says opened vials cannot be returned. Damaged or wrong items must be reported within 48 hours of delivery, with photos.
Is there a first-order discount at Koi Peptides?
As of October 23, 2026, the seller advertises 20% off a first order for people who join its researcher list, with the code emailed after sign-up.
Does Koi Peptides require age or access confirmation?
The seller states it uses an access gate where visitors confirm they are 21 or older and a qualified researcher purchasing for in vitro laboratory research. It also states products are sold exclusively to qualified researchers and licensed laboratories.
What payment methods does Koi Peptides accept?
The seller's FAQ lists major credit cards, ACH and wire, with net-30 terms for verified institutional buyers.
Price changes, last 30 days
No price changes in the last 30 days.
About Koi Peptides
Koi Peptides sells research peptides through its own website and is based in Sheridan, Wyoming, with warehouses in Austin, Texas and Long Beach, California. The seller states its products are for laboratory and research use only and not for human consumption, and requires visitors to confirm they are 21 or older and a qualified researcher.
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Prices checked Oct 23, 2026. Offers last confirmed Oct 23, 2026. How we work.
20% Off First Order at Koi PeptidesBest price $39.95 · Checked Oct 23, 2026
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