PSPeptides is an operating vendor with dated COAs for about 60 products, a strong Trustpilot score and no FDA warning letter on record as of September 26, 2026. It's also the vendor on our list whose content most conflicts with research-use-only labeling, because its blog publishes human dosing guides. Its overall score is 8.5/10; on our transparency method alone it scores 7.0/10, the lowest of the eight on that measure. It sits at #3 in our editors' order, which weighs partnership terms as well as the rating, so its position doesn't reflect its score.
Notice: PSPeptides' products are sold for laboratory research only. They are not FDA-approved and not for human or animal consumption. This review covers supplier transparency only. We didn't buy or test any products, and we don't repeat any dosing content.
PSPeptides at a glance
- Operating status: Live storefront at pspeptides.com, checked September 26, 2026.
- Location: The about page says it's New Jersey-based with a 25-person team. Its Trustpilot company details list a Paramus, NJ suite address (Trustpilot). The site publishes no legal entity.
- Business age: The about page claims "over 5 years in business," but the domain was registered on November 10, 2025 (WHOIS). The business may have operated under another name before, but we couldn't confirm that.
- Manufacturing claim: It says its peptides are "manufactured in US facilities following cGMP guidelines." We found no evidence to verify this.
- FDA record: No warning letter found in the FDA database.
PSPeptides COA: what's published
The certifications page covers about 60 products. Each certificate is dated by month and has a test ID in its file name (for example, Retatrutide 40mg, "Jul 2026," PSP-0029123). The page also mentions heavy metals, endotoxin, sterility and fentanyl screening reports.
We opened one certificate (retatrutide 40mg). It was issued by North American Diagnostics and showed batch PSP-06262026RT, HPLC-UV with mass spectrometry, and 99.96% purity. It listed no accreditation body and no verification key. The lab's website offers a batch lookup and says, "We don't sell the products we test." It doesn't list an accreditation.
The certificate gives an Austin, TX address and a phone number with a 201 area code (northern New Jersey). That doesn't show any link between the lab and PSPeptides. But with no accreditation listed and the lab not named on PSPeptides' own site, we couldn't confirm how independent the testing is.
The site's Verify page is an order lookup (order number plus email). It isn't a COA verification tool. See how to read a peptide COA.
Independent testing
Finnrick tracks the vendor as "ProSupply PS Peptides" (Finnrick) but shows 0 tests as of September 26, 2026. No community data exists to check its certificates against.
Labeling: the biggest problem
The site carries research-use disclaimers on every page. Its content often says otherwise:
- Dosing guides. The blog has posts titled as dosage guides for retatrutide, GHK-Cu, the "Wolverine stack" and CJC-1295/ipamorelin. The retatrutide page, titled "Retatrutide Dosage: Week-by-Week Chart 2026," includes escalation schedules and side effects by dose level. It was last modified September 23, 2026.
- Benefit-style product names. The shop lists bundles named "Shred Express," "Cut & Glow," "Turn Back Time" and "Gut Revival." The Shred Express page calls it "designed for multi-pathway fat loss and metabolic research."
- Consumer formats. The catalog includes nasal sprays, topicals and oral tablets, plus a reconstitution calculator.
FDA has repeatedly said a "research use only" label doesn't protect a seller whose content points to human use (background). This is why PSPeptides scores lowest on our labeling factor. The catalog also includes GLP-1-class compounds.
Pricing and coupon code
BPC-157 is priced at $49.99-$89.99 depending on size, and the Shred Express bundle was $224.99 on sale (shop).
PSPeptides coupon code: CHECKED gives 10% off (our partner code). PeptideChecked has an affiliate relationship with PSPeptides: we may earn a commission if you buy through our link or use this code. That doesn't change its rating, which comes only from our published method.
Shipping and payment
- Shipping: Same-day shipping on orders before 2pm EST, and free UPS 2nd Day Air over $200. It ships to the US, Canada, EU, UK and Australia, per the homepage.
- Payment: Visa, Mastercard, Amex, Discover, Afterpay, Klarna, Apple Pay, Google Pay, Shop Pay, Cash App and Zelle (payment options). That's the widest range of the eight.
Is PSPeptides legit?
PSPeptides appears to be an operating vendor, with dated COAs for about 60 products, a 4.2/5 Trustpilot score and no FDA warning letter on record as of September 26, 2026. But its blog publishes human dosing guides, it names no legal entity or lab on its site, and its '5 years in business' claim doesn't match a domain registered in November 2025.
Our scam check, as of September 26, 2026:
| Check | Result |
|---|---|
| Live storefront | Yes, pspeptides.com (checked September 26, 2026) |
| Business entity/address published | No legal entity on the site; New Jersey per its about page, with a Paramus, NJ address on Trustpilot |
| Domain age (WHOIS) | Registered November 10, 2025 (WHOIS) |
| Named testing lab | Not on its site; North American Diagnostics on the COA we opened |
| Lot-matched COAs | Partly: dated by month, with a batch number on the PDF (certifications) |
| Independent tests (Finnrick) | Profile with 0 tests (Finnrick) |
| FDA warning letter | None found (FDA database) |
| Trustpilot | 4.2/5 from 175 reviews, checked September 26, 2026; the company invites reviews (Trustpilot) |
| Reddit discussion | Little discussion found in a site:reddit.com search (September 26, 2026) |
These checks cover disclosure and public records only. They don't test what's in the vial, which is why we weight independent testing in our score.
Our partner code is on the PSPeptides coupon code page. Compare it: PSPeptides vs Ascension Peptides · Swiss Chems vs PSPeptides
PSPeptides reviews and complaints: Trustpilot and Reddit
The Trustpilot page is claimed, invites reviews, and had 175 reviews averaging 4.2/5 when we checked, with 78% 5-star and 12% 1-star. Positive themes are fast shipping, packaging and support. Negative themes include delayed orders, missed "2-day" delivery claims and complaints about responses to disputes. Profiles that invite reviews tend to score higher. We didn't find substantial Reddit threads we could verify.
How PSPeptides scores
| Factor | Weight | Score (5-10) | Why |
|---|---|---|---|
| COA publication | 20% | 9.0 | Public, ~60 products, dated, batch on PDF |
| Lab traceability | 20% | 6.75 | Lab named only on PDFs; no accreditation or verify key |
| Independent testing | 20% | 5.0 | Finnrick profile, 0 tests |
| Labeling and naming | 20% | 5.75 | Human dosing guides, fat-loss and anti-aging bundle names |
| Business transparency | 10% | 7.5 | State and payments disclosed; no entity; age claim unverified |
| Regulatory record | 10% | 10.0 | No FDA warning letter found |
| Transparency score | 100% | 7.0 | Weighted average (7.05 before rounding); raw method score 4.1 of 10 |
Shown on our 5-10 display scale: 5 means a vendor just meets our minimum bar to be listed, 10 is a perfect score on every factor. How we score.
Alternatives
- Peptide Plugs (7.5/10): Freedom Diagnostics COAs with accession codes you can check at the lab.
- NextGenPeps (8.8/10): names its labs on its own site, with strict RUO content.
- American Peptides (9.1/10): offers a lot-number COA lookup.
- Alpha Pro Peptides (6.3/10): Freedom Diagnostics certificates with lot IDs.
- Ascension Peptides (8.1/10): an 85-record COA library searchable by lot; lab named only by independent reviewers.
- Swiss Chems (6.5/10): has Finnrick data but an FDA letter. See Swiss Chems vs PSPeptides.
Verdict
PSPeptides scores 8.5/10. The COA volume and service reputation are real. But dosing guides and "Shred"-style bundles conflict with research-use labeling, and its lab, manufacturing and business-age claims are hard to verify. Removing the dosing content and naming an accredited lab on its site would change its score the most.
Visit PSPeptides to see its certifications page.
Related: best peptide vendors · best peptide vendors in the USA · FDA peptide regulation in 2026
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