Main Peptides sells direct to researchers and at wholesale. It lists 41 products, including LL-37, 5-Amino-1MQ, Snap-8, SS-31, Sermorelin, and PT-141, plus 15 other compounds.
In its own words: “Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo. Nam nec tellus a odio tincidunt auctor a ornare odio. Sed non mauris vitae erat consequat auctor eu in elit.”
We found no test results or certificates anywhere on Main Peptides's site. Of the 12 product pages we opened, 3 state 99% purity.
Prices run from $9.99 to $384.99 across 41 listed products. Payment is by bank transfer, credit card, paypal, zelle, and cash app. Orders ship with USPS.
Worth knowing before you order: no published COAs. We found no certificates of analysis or third-party test results anywhere on the site.
Site check: 41 products listed; payment by bank transfer, credit card, paypal, zelle, cash app; ships via USPS.
Main Peptides is listed as active. Tracked by Finnrick. No test data available yet.
Community standing: 4.7/5 on Trustpilot from 20 reviews. Ratings of anonymous sellers of unregulated products are the weakest signal on this page; the assay and grading records carry more.
The record for Main Peptides
Status
Active
Trustpilot
4.7/5 from 20 reviews
Vendor type
Research-use supplier
What we found
No published COAs. We found no certificates of analysis or third-party test results anywhere on the site. source
Public pricing. Publishes prices on 41 of 41 catalogue entries. source
Card payments accepted. Accepts Bank Transfer, Credit Card, PayPal, Zelle, and Cash App, so card chargeback protection applies. source
Research-use-only notice. The site carries an explicit research-use-only / not-for-human-consumption notice. source
Reshipment offered. If a package is returned to us due to an incorrect or incomplete address, the customer is responsible for re-shipping costs. source
Ordering and payment
Payment methods
Bank Transfer, Credit Card, PayPal, Zelle, Cash App
Card payments
Accepted
Cryptocurrency
Not accepted
Bank transfer
Accepted
Pricing
Listed publicly on the site
Currency
USD
Online checkout
Available
Shipping and handling
Ships to
United States, Europe, Worldwide
Carriers
USPS
Lost or damaged parcels
If a package is returned to us due to an incorrect or incomplete address, the customer is responsible for re-shipping costs.
Returns and guarantees
Returns
Carrier delays do not automatically qualify an order for a refund.
Research-use notice
Published on the site
Company details
Legal name
Main Peptides
Basis for location
Site copy references United States
Contact channels
Contact page
https://mainpeptides.com/contact/
Testing and certificates
Purity grades advertised
99%
Products listed
41
How we checked
These details were read from Main Peptides's own website on 2026-08-10. Pages consulted:
We hold no independent testing, published certificates, or ratings for Main Peptides, so we cannot tell you whether it is legitimate. That is an absence of evidence, not evidence of a scam — it means nobody has tested it.
Has Main Peptides been lab tested?
We hold no independent third-party assays for Main Peptides. Any purity figure it publishes is self-reported unless it names the lab that produced it.
How do you pay Main Peptides?
Main Peptides accepts Bank Transfer, Credit Card, PayPal, Zelle, Cash App.