Peptix USA
Vendor Score 72/100
Third-party lab named, certificates not readable by our scanner
COA coverageShare of the products this vendor sells that have at least one COA opening at the testing lab. Extra documents for the same product do not change it. Pages that refuse our reader are marked partial and never lower anything. It describes what a vendor publishes, not purity. How we count
We show no percentage here: the gap is in our reading, not in what the vendor publishes. It lowers nothing.
Independent price profile. We track 5 tracked peptide listings from peptixusa.com · online since Apr 2026How long the vendor's website domain has existed — from public registration records and the Wayback Machine. It's the domain's age, not proof of how long the business has run. · cheapest tracked: $2.60/mg.
Evidence note: 2026-11-14: the COA library (/allcoas, loaded from the storefront's own product_details table) lists per-lot reports. Per its entries the lab is Freedom Diagnostics (links on coas.freedomdiagnosticstesting.com; one checked: HTTP 200 PDF, client printed as "Peptix labs", lot D87432, BPC-157 10mg; a made-up code 404s) or ILS Labs (files.ils-lab.com / vendor-hosted copies; ILS is not in the lab registry, so it counts as attribution only). The About page says "You can verify any CoA on the lab's own website, not ours." Re-checked 2026-11-14 (QA): the library's storefront select (product_details: wp_product_id, slug, coa_entries, compound_info) lists 6 products; 3 link a per-lot Freedom certificate on the lab's own domain matching its registry resultPath, each 200 application/pdf (coas.freedomdiagnosticstesting.com/Pept2605210264.pdf, /Pept2604220094.pdf, /Pept2605210262.pdf; a made-up id 404s); the other 3 point to files.ils-lab.com (ILS), verifiedbyvanguard.com or Supabase-hosted copies. Because the scanner cannot read this JavaScript library, the scan tier is "claimed" and the score stays at the named-lab rung (67) with a basis that says the certificates are not readable by our scanner, rather than 87 for half the catalog (coordinator call B). Publication observed, not a purity certification.
Vendor-published info captured from Peptix USA's own site — not tested or verified by pepmg. Confirm on their site.
Domain age from public registration records (RDAP) + the Wayback Machine — the domain's age, not proof of how long the business has operated.
refreshed 21m ago
Where Peptix USA's prices sit in each market
Sorted from furthest below the median to furthest above. Bar: middle 80% of tracked listings · rule: median · dot: Peptix USA's cheapest in-stock $/mg.
- Tirzepatide $2.60 ▼ 42% below
- BPC-157 $4.00 ▼ 22% below
- Tesamorelin $6.20 ▼ 10% below
- Retatrutide $5.90 ▲ 3% above
Compared with every in-stock, single-compound listing pepmg tracks for each compound (bulk packs, blends and out-of-stock items left out). The axis is the ratio to that compound's median, so every row shares it.
Where Peptix USA beats the market
Below the median $/mg, ranked by how far below — not by raw price
-
Tirzepatide
20 mg · $52.00 ▼ 42% below median #31 of 181 listings · median $4.50 -
BPC-157
10 mg · $40.00 ▼ 22% below median #32 of 136 listings · median $5.10 -
Tesamorelin
10 mg · $62.00 ▼ 10% below median #41 of 109 listings · median $6.90
Products we track
All peptide products in our current snapshot, including blends and out-of-stock listings. Search by name, sort any column, or open a product to compare vendors. This is our indexed catalog, not a guarantee of the store’s complete inventory.
Size, form & budget
Price includes the displayed code where available. Shipping and tax are extra. Unknown sizes or prices are excluded when those filters are set.
Your comparison
Selections stay on this browser. Prices and stock come from the current page; review freshness and COA notes for each offer. Scroll sideways to see every offer.
Select up to four offers to compare side by side. Click a column heading to sort. Click again to reverse. Scroll sideways for more columns.
Tick up to four offers to compare side by side. Use Sort by to reorder. COA counts are each vendor's own library; batch match is not assumed.
| Select | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| BPC-157 10 MGBPC-157 | Vial / standard | 10 | $40.00 | $4.00 | in stock | COA detailsVendor library; batch match not assumed | Checked within 24 hoursPrice and stock were collected in the latest refresh. | View product ↗ | |
| NAD+ 1000 MGNAD+ | Vial / standard | 1000 | $58.00 | $0.06 | out of stock | COA detailsVendor library; batch match not assumed | Checked within 24 hoursPrice and stock were collected in the latest refresh. | View product ↗ | |
| Reta (GLP-3) 10 MGGLP3 RT | Vial / standard | 10 | $59.00 | $5.90 | in stock | COA detailsVendor library; batch match not assumed | Checked within 24 hoursPrice and stock were collected in the latest refresh. | View product ↗ | |
| Tesamorelin 10 MGTesamorelin | Vial / standard | 10 | $62.00 | $6.20 | in stock | COA detailsVendor library; batch match not assumed | Checked within 24 hoursPrice and stock were collected in the latest refresh. | View product ↗ | |
| Tirz (GLP-2) 20 MGGLP2 TZ | Vial / standard | 20 | $52.00 | $2.60 | in stock | COA detailsVendor library; batch match not assumed | Checked within 24 hoursPrice and stock were collected in the latest refresh. | View product ↗ |
No matches. Try another search or reset the filters.
Peptix USA scores 72/100 in pepmg's criteria-based Vendor Score, which rates only what a vendor publishes about lab testing and about itself, not its products and not its prices. What we observed: third-party lab named, certificates not readable by our scanner. The biggest credibility signal pepmg weighs is how a vendor publishes lab tests: it names a third-party lab (Freedom Diagnostics), but publishes its certificates in a form pepmg's scanner cannot read, so pepmg can see the claim but cannot confirm the documents. Neither price nor catalog size affects this score, but for context it prices below the tracked median across the compounds it shares with other tracked vendors, over 4 tracked listings. Its prices are machine-readable, and the domain is newer, online since Apr 2026, which pepmg counts as neutral rather than a mark against it. This rates what Peptix USA publishes about lab testing and about itself, not the purity or authenticity of any vial, which pepmg can't verify, so read the COAs yourself. Research use only.
- Strength Third-party lab named (Freedom Diagnostics) — lab named; certificates not readable by our scanner
How we scored this
| COA transparency | | 67/87 | third-party lab named (Freedom Diagnostics) — lab named; certificates not readable by our scanner |
| About / who they are | | 0/8 | no About/founder page found |
| Public price data | | 5/5 | publishes machine-readable public prices |
Stated, but NOT scored. These describe the vendor; they earn no points either way.
| Price vs market | 0.82x the tracked median across 4 shared compound(s) |
| Catalog | 4 clean in-stock listing(s) tracked |
| Track record | active · new domain (online Apr 2026) — no age penalty |
What would raise this score. Published behaviour only. How a vendor runs its business is its own call, and none of this affects the $/mg ranking.
- Results hosted on the testing lab's own site, where the lab itself can confirm them, read stronger than documents hosted on the vendor's own site. (up to +20)
- An About or founder page saying who is behind the business. (up to +8)
Computed from what this vendor publishes about lab testing and itself. Price and catalog size are shown above as facts and are deliberately NOT scored — $/mg is the ranking, and it is affiliate-blind. No opinions, no testimonials.
Are you the vendor? If you have changed something we score here, published something we did not find, or think we got it wrong, reach out or email hello@pepmg.com and we will re-check. Vendor corrections have already changed ratings on this site.
COA library (0 indexed records)
Browse every document and report currently indexed for this vendor. A COA covers its stated product and batch; a vendor-level link does not establish a match to every listing. Some labs limit automated access.
Open Peptix USA’s COA source ↗
No individual documents are indexed yet. Use the vendor source above to check available certificates.
We don't host reviews — an unverifiable review box is a magnet for bots and paid posts, and we won't pretend otherwise. Instead, here's where you can read what real buyers say about Peptix USA, on sites we don't control:
These are independent, unmoderated sources — we link them, we don't vouch for them, and a "profile" or "search" link may turn up little or nothing. pepmg's job is the part we can stand behind: prices captured first-party with a timestamp, ranked purely by $/mg, plus the objective Vendor Score above. Vetting a source you're about to buy from still matters, and that call is ultimately yours — we've made it as informed as we honestly can.