What Chemyo's closure notice says (read on chemyo.com on 5 October 2026):
- It closed permanently on 8 September 2026 and takes no new orders.
- Orders placed before 8 September are unaffected and will be fulfilled as normal.
- Its support team still answers questions about orders and past purchases by email, at the address on chemyo.com.
- chemyo.com is its only official website. No other site is authorized to act for Chemyo, and it no longer accepts payment through any website, person or entity.
The notice says nothing about refunds or certificates.
The payment line is the one to hold onto. By Chemyo's own account, any site, chat account or email selling Chemyo products, taking Chemyo "pre-orders" or calling itself Chemyo's successor isn't Chemyo. Don't send it money or your address. Chemyo asks for these to be reported to its support email, and you can post the details here, minus the handle.
What's on file for Chemyo (verified October 2026):
- 17 lab tests, all from one lab, Nutri Analytical, dated May 2025 to February 2026. Median HPLC purity 99.75%; median measured content 101.4% of the label.
- Most of the 17 are SARMs and other research compounds (S-23, RAD140, LGD-4033, MK-677 and others), not peptides.
- Nutri Analytical is community-listed: there's no verification portal and no ISO/IEC 17025 accreditation on file for it, so these certificates can't be checked against the lab's own records. The figures are what the certificates say, not results we could confirm.
- If your batch number isn't one of the 17, there's no certificate for it on file.
The full record stays up at Chemyo.com reviews, ratings & lab tests, and the lab's profile is at Nutri Analytical. Check your batch number in the Peptide COA lookup.
The closure doesn't change what's in a vial you already have, and a lab test is the only way to know. If you test one, Submit a lab test and it goes on file under Chemyo with the rest.
Looking for another shop? That has its own thread: Recommended peptide suppliers? Read this first.
We'll add to this reply if Chemyo posts anything new.