Independent vendor review
Review profile checked 2026-08-10 · Independently fact-checked
PS Peptides scored across our four rubric factors — COA practices (40%), reputation, transparency, and operations (20% each).
Weighted factor result: 8.6/10. The published score follows the weighted result after rounding.
Buying details
Free standard shipping is listed at 4–6 business days. A 1–2 business-day UPS option is available at a materially higher cost. Review the current checkout for destination eligibility and delivery timing.
Trust signals
PS Peptides publishes 51 public product-and-strength certificates. PeptidePrices checked the three Retatrutide 5mg reports for batch PSP-06112026RT. North American Diagnostics listed Retatrutide identity, 99.93% HPLC purity, 5.08mg measured content, endotoxin below 5 EU/vial by LAL kinetic chromogenic assay, and Pb, As, Cd, and Hg not detected by ICP-MS. The reports name ProSupply Peptides as the client and use test ID PSP-0028013. The library does not show sterility testing in this sample. Match the exact product, strength, and batch.
Evidence summary
PS Peptides has a strong public certificate library, a meaningful independent customer-review record, and a polished checkout experience.
Its public reports support a 9/10 COA score, not a perfect score: North American Diagnostics is lesser known and the reviewed report set does not show sterility testing. Match each report to the exact product, strength, and batch. Code PEPTIDEPRICES gives customers 10% off.
PS Peptides is a US research vendor operated by ProSupply Services LLC. The site lists a Paramus, New Jersey mailing address, a support email, and a phone number, and says it started in 2020. Checkout supports cards, buy-now-pay-later services, Apple Pay, Google Pay, Cash App, and Zelle. Free standard shipping is listed at 4–6 business days; the faster 1–2 business-day UPS option costs more.
The public certificate library lists 51 product-and-strength records. PeptidePrices checked Retatrutide 5mg batch PSP-06112026RT. North American Diagnostics reported identity, 99.93% purity, 5.08mg measured content, endotoxin below 5 EU per vial, and no detected lead, arsenic, cadmium, or mercury. This is high-quality multi-panel evidence, though the lesser-known laboratory and no sterility result in the reviewed set keep COA at 9 rather than 10.
Trustpilot displayed a 4.7/5 customer rating from 105 exact-domain reviews during this review, supporting a 9/10 reputation score. Customer reviews describe purchase and service experiences; they do not verify product identity or laboratory results. The published address is a mailbox. Affiliate status does not affect this 9/10 overall rating.
Decision guide
Customer reputation
Customer reviews describe service and order experiences. They do not prove identity, purity, vial content, sterility, or manufacturing standards. We keep them separate from COA and independent-testing evidence.
The exact-domain profile displayed a 4.7/5 customer rating from 105 reviews during the August 2026 check. It is a meaningful reputation signal, but customer reports do not establish product identity, purity, vial content, sterility, or laboratory quality.
Check the source →Direct answers
Yes — PS Peptides scores 9/10 in our methodology (40% COA practices, 20% reputation, 20% transparency, 20% operations) and is rated "Highly Trusted".
pspeptides.com is the official website of PS Peptides. PS Peptides scores 9/10 in our published evidence rubric (Highly Trusted). Trustpilot currently shows 4.7/5 from 105 public reviews. Customer opinions do not verify composition or laboratory quality.
COA status: COA ✓ with third-party testing. PS Peptides publishes 51 public product-and-strength certificates. PeptidePrices checked the three Retatrutide 5mg reports for batch PSP-06112026RT. North American Diagnostics listed Retatrutide identity, 99.93% HPLC purity, 5.08mg measured content, endotoxin below 5 EU/vial by LAL kinetic chromogenic assay, and Pb, As, Cd, and Hg not detected by ICP-MS. The reports name ProSupply Peptides as the client and use test ID PSP-0028013. The library does not show sterility testing in this sample. Matc
Yes — use code PEPTIDEPRICES for the current PeptidePrices partner discount. Open the vendor through the referral link, then enter the code separately at checkout and confirm the discount before payment.
PS Peptides operates out of Paramus, NJ.
See our /vendors page for the full ranked list. We use the same rubric for every vendor on the site, so direct comparison is straightforward.
Our quality scores are based on a weighted rubric: 40% COA practices (named third-party lab, batch linkage, public availability), 20% community reputation, 20% transparency, and 20% operations. We are independently owned; affiliate status is not a scoring factor.
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PeptidePrices is independently owned and participates in PS Peptides's affiliate program. We may be paid for qualifying purchases through our links. PS Peptides cannot edit or approve this review, and the relationship does not add points to its score.
