Buy YK-11 from Extreme Peptides
Extreme Peptides is a USA vendor. The current indexed YK-11 listings at Extreme Peptides start at $72.99 per vial, and this profile compares those listings against other indexed vendors. Our automated check found that Extreme Peptides does not show a COA or lab-results link on its homepage (checked Nov 13, 2026). Use the live product page to confirm current documentation before purchasing for lawful research use.
Extreme Peptides YK-11 Listings
| Size | Pack | Price | Per vial | Per mg | Stock | Buy |
|---|---|---|---|---|---|---|
| — | 1 vial | $72.99 | $72.99 | — | Yes | Visit (Extreme Peptides, opens in a new tab) |
Prices are the store's listed price when we last checked; click through to the vendor for live pricing. Per vial = pack price ÷ vials in the pack; $/mg uses the per-vial price.
How Extreme Peptides's YK-11 Price Compares
Extreme Peptides's lowest single-vial YK-11 price is 4.3% above the current indexed single-vial market median of $69.99. This page tracks $72.99 per vial at Extreme Peptides.
Cheaper YK-11 Alternatives
| Vendor | Single-vial price | Offer Page |
|---|---|---|
| Nootropic Source | $39.95 | Compare offer → |
| BuyDeus (Deus Medical) | $61.41 | Compare offer → |
| AMC-Essentials | $69.99 | Compare offer → |
Extreme Peptides Vendor Facts
- Location
- USA
- Domain registered (RDAP)
- Jan 2011
- Payment methods (detected on vendor homepage)
- credit card, crypto, bank transfer (checked Nov 13, 2026)
- COA or lab-results link (on vendor homepage)
- Not found (checked Nov 13, 2026)
- Price per mg vs Market Median
- 85% above median (9 compounds)
- Last Checked
- Nov 6, 2026
- Full Profile
- Read the Extreme Peptides profile →
Related Resources
Disclaimer: This site is for informational purposes only. Not medical advice. Compounds listed in this directory are sold by third parties for laboratory research, not for use in people or animals.