Is Simple Peptide legit? Can't be fully verified
Simple Peptide is a real, operating store, but we can't fully verify it: catalog is behind a login.
Our verdict on Simple Peptide
Can't be fully verified
Not ranked
- Publishes lot-matched COAs
- Named lab: Freedom Diagnostics
- 60% of 47 independent tests passed
Last verified How we scoreFull review
COA library audit
- Publishes COAs
- Yes · open COA libraryVerified· Oct 21, 2026COA archive
- Lot-matched
- Yes
"Search by product name, lot number, or accession number."
Verified· Oct 21, 2026COA archive - Testing labs
- Freedom Diagnostics
Seen on a 2025 sample COA.
Verified· Oct 21, 2026Reference COAs - Methods shown
- HPLC-UV with mass spectrometry · Sterility · Endotoxin · Net peptide contentVerified· Oct 21, 2026Reference COAs
- Purity claim
- 99%+ finished-lot standard "where molecular characteristics allow"Verified· Oct 21, 2026COA page
- Independent tests
- Finnrick: 28 of 47 classifiable tests passed across 9 peptides (rating 63%, #391 of 482). Latest test Oct 8, 2026.Verified· Oct 21, 2026Finnrick
What to know before buying
Catalog and prices behind a login
Prices can't be compared publicly.
Verified· Oct 21, 2026Homepage
Policies and company
- Catalog access
- login-gated
Sign-in "unlocks pricing, current lots and COAs". We didn't create an account.
Verified· Oct 21, 2026Homepage - Shipping
- US only; orders before 2 PM ET ship same day by 2nd Day Air. Rates not published.Verified· Oct 21, 2026Shipping & returns
- Payment
- Visa, Mastercard, American Express, Bank paymentVerified· Oct 21, 2026FAQ
- Returns
- 30-day refunds for unopened, unused products; buyer pays return shipping.Verified· Oct 21, 2026Shipping & returns
- Company
- Melex Technologies Inc., Delray Beach, FLVerified· Oct 21, 2026Site
Price snapshot
What we did not do
- We haven't bought from this vendor or sent its vials to a lab ourselves yet. Our blind tests will appear in Lab Reports.
- We didn't place an order, so shipping speed and packaging are the vendor's stated policy, not our experience.
- We didn't verify COA report numbers with each lab unless the fact says so.
Alternatives on the same method
Ranked strictly by score. DRYPtides is the vendor we plan to partner with and appears only where its score puts it.
Questions
Is Simple Peptide legit?
Simple Peptide is a real, operating store, but we can't fully verify it: catalog is behind a login.
Does Simple Peptide publish lot-matched COAs?
Publishes lot-matched COAs. A lot-matched COA carries the same lot number as your vial; without it, a test of another batch says little about yours.
Has Simple Peptide had FDA trouble?
We found no FDA warning letter or regulator action naming Simple Peptide as of 2026-10-21.
What are the best Simple Peptide alternatives?
On the same method: Core Peptides (83), True Peptides (75), Penguin Peptides (74).
Is there a Simple Peptide coupon code?
We have no verified percentage code for Simple Peptide; our coupon page lists what we could source.