Chemyo
One of the most trusted SARMs vendors on Reddit, also offering select peptides; publishes third-party COAs. Strong long-term reputation. Aggregated from public sources; VialGrade does not endorse any vendor.
Maker — not a shop
No red flags on record, and the evidence is real: 2 independent lab tests, independently corroborated evidence, and mostly-positive buyer reports. Not an endorsement — just what the data shows.
Why this grade — We hold 2 independent lab tests naming this maker, but they don't sell direct — nothing here is a storefront you can buy from, so there is nothing to rate. Their tests may back a listing sold by someone else.
Only 3 checks so far. 1 backed by a document.
2
Independent lab tests
99.8%
Median tested purity
0
Listings
—
Typical price vs market
1
Buyer reviews on file
Read from the certificate, not re-measured by VialGrade.
What we found
Every check we ran on Chemyo
Everything we know about Chemyo, in one place — each one comes from something you can read further down this page. The grade above is a summary of this list, not a replacement for it: a good result and a bad one both stay visible instead of cancelling each other out. We mark each one: Confirmed (we have the document), Reported (someone else said it), or Our guess.
Government records
No FDA/DOJ/FTC enforcement or recall record on file.
Independent lab tests
Confirmed2 independent lab tests on record · median 99.8%.
What buyers say
ReportedMostly positive buyer reports.
Reputation
We don't boil it down to one rating
Who they are
ConfirmedUnclaimed page — nothing here is written by them
Has this vendor claimed their page? No. Everything here was gathered by us from public sources.
Lab tests current?
Confirmed2 lab tests on file · newest tested 2026-05-12
The independent lab tests we hold for this vendor, newest first.
Independently tested?
Confirmed2 independent lab tests · typically 99.8% pure · 1 batch test record
Independent lab tests and published batch test records linked to this vendor.
Track record shipping
We don't knowWe can't see how they ship
They don't sell through us, so we can't see how fast they ship.
What buyers say
ConfirmedMostly positive · lots of reports · we're fairly sure
Widely regarded as one of the more reputable and long-running SARMs/research-chemical vendors (operating since ~2016, early adopter of HPLC/FTIR purity and concentration testing), Trustpilot ~4.4 and rated low-risk by scam checkers. Note: Chemyo primarily sells SARMs/nootropics, not peptides, so it is somewhat out of category; some scattered forum complaints exist (e.g., a 'Beware of Chemyo' thread, reports of side effects on Ostarine).
Scam & red flags
ConfirmedNone on record
Official government actions (FDA, DOJ, FTC) and open fraud cases against this vendor. These are public records, not our opinion.
Each answer stands on its own and says where it came from. Where we don’t have the evidence, it says so — we never invent a number or blend everything into one score.
Independent testing
Chemyo — independent lab tests on record
Real, publicly verifiable third-party tests. Purity is read from the certificate itself. A test reflects one lab’s result for one submitted batch — not a guarantee that every vial matches.
How does this data get here?
Every record below is a real certificate of analysis, gathered two ways: from the public verification feeds that independent labs (like Janoshik) publish, and from the certificates vendors post on their own product pages. We open each certificate document and read the measured purity, content, batch, and date directly off it — a scraper can’t read a number printed inside an image, so this is done by machine vision, then recorded here with a link back to the original.
Nothing here is typed in by a vendor or invented by us. Where a certificate is missing, we say so rather than filling the gap.
We re-check the lab feed, too. A “still listed” tag means the certificate is currently public in Janoshik’s database — we re-verify against the live feed and stamp the date. If a cert is later pulled, the tag flips. It’s a freshness check on the same source, not a second independent opinion.
What a certificate does & doesn’t prove
Three different questions. Purity (“how clean?”), identity (“is it the right molecule?”, a mass-spec test), and content (“did I get the labeled mg?”) are separate. A vial can be 99% pure and still be the wrong peptide, or the right peptide underdosed. We flag the measured dose against the label above; underdosing is the most common real fraud.
Who submitted the sample matters. Most of these are vendor-submitted — the seller chose which vial to send, so one good certificate doesn’t prove every batch is the same. The gold standard is a blind test, where a buyer sends a vial they bought as a normal customer. Same label doesn’t prove same product; same batch number doesn’t prove same batch.
100.0%
highest tested purity
What buyers say
Reputation, gathered from the open web
Widely regarded as one of the more reputable and long-running SARMs/research-chemical vendors (operating since ~2016, early adopter of HPLC/FTIR purity and concentration testing), Trustpilot ~4.4 and rated low-risk by scam checkers. Note: Chemyo primarily sells SARMs/nootropics, not peptides, so it is somewhat out of category; some scattered forum complaints exist (e.g., a 'Beware of Chemyo' thread, reports of side effects on Ostarine).
What buyers praise
- Long track record (since ~2016) and strong overall community standing in the SARMs space
- Early/consistent third-party purity (HPLC), identity (FTIR) and concentration testing
- Trustpilot ~4.4/5; rated legitimate/low-risk by scam-check sites
Red flags reported
- Sells SARMs/nootropics rather than true research peptides — category mismatch
- Scattered forum complaints including a 'Beware of Chemyo' thread and reports of elevated heart rate / side effects on Ostarine
- COAs alone can be faked; potency disputes surface occasionally
Gathered from public web sources on 8/5/2026 and weighted toward specific, reproducible reports over generic praise — praise is cheap to fake, failure reports and independent lab results are not. Reputation decays: ownership and quality change over time, so re-check against current sources before you buy.
Who owns it
Who’s really behind this storefront
Not linked to any other store we track
We checked Chemyo against every other store we track for the tell-tale signs that two “different” shops are the same people: the same tracking code, the same product photo, the same tested batch, the same supplier. We found none. That doesn’t make them trustworthy — it just means they aren’t one of a group of fake “rival” stores we’ve spotted.
Catalog
No shoppable listings
We track Chemyo from lab records and public sources, but haven’t captured a live storefront catalog.