Prime Peptides
Re-analysis of the published site located 9 certificate records and wrote 9 mapped to tracked compounds. 6 strengths and 1 weakness recorded from the findings.
Edited by Slava Melikov, Research Editor · reviewed 28 Sept 2026
Last verified · 9 certificate records · rubric v1.11.0 · primepeptides.co
Source: PepIndex, an independent index of research-peptide vendors. No vendor can pay for a rank, every score is computed by a published formula, and every figure links to the document it was read from.
PepIndex score
75.7 / 100
3.8/ 5Well documentedData coverage
96%
Coverage is the share of scored fields we hold and corroborated for Prime Peptides. A score built on a handful of unchecked claims and a score built on forty verified data points are not the same finding, so both numbers are always published together. How coverage is computed.
Is Prime Peptides legit?
Read the record first. PepIndex holds 1 regulatory or enforcement action on file against Prime Peptides, alongside 9 certificate records, and scores it 75.7/100 on 96% data coverage.
- An authority action is publicly verifiable and cannot be manufactured, which is why it weighs more here than any review.
- Across those lots the mean assayed purity is 99.73%, and the weakest single lot came back at 99.02%.
- 1 of 9 lots assayed below the mass printed on the label.
- PepIndex records those laboratories as holding ISO/IEC 17025 accreditation.
- The laboratory named on Prime Peptides's own profile does not match the laboratory on the certificates PepIndex has read, so the stated name is not relied on here.
- Its certificates can be read without an account, so anyone can check these figures.
- On the business side it publishes a named legal entity, a postal address and prices visible without an account.
What this does not tell you
- PepIndex has located no independent customer reviews for Prime Peptides, so nothing here speaks to its service or fulfilment.
- A score measures what a vendor publishes about its testing and its business. It does not measure the contents of any vial a buyer actually receives, and PepIndex does not commission its own assays.
Certificate recordsLot-level results with labeled versus assayed mass9 lots7.0% mean deviationView all →Hide ↑
Discrepancy is computed as the absolute difference between labeled and assayed mass, divided by the labeled mass. A vendor-published certificate is a claim; only an independently commissioned assay is treated as corroboration.
| Compound | Lot | Tested | Lab | Labeled | Assayed | Discrepancy | Purity | Report |
|---|---|---|---|---|---|---|---|---|
| Retatrutide | 26071002 | Freedom Diagnostics Testing | 30 mg | 36.37 mg | 21.2% | 100.0% | Vendor-published | |
| Tirzepatide | 26070902 | Freedom Diagnostics Testing | 30 mg | 31.2 mg | 4.0% | 100.0% | Vendor-published | |
| Tirzepatide | 26070201 | Freedom Diagnostics Testing | 30 mg | 34.1 mg | 13.7% | 99.9% | Vendor-published | |
| GHK-Cu | PP-6524116-P | Horizon Analytical | 100 mg | 99.48 mg | 0.5% | 99.5% | Vendor-published | |
| Glutathione | 3152026GLU | Bioviridian Inc. | 1500 mg | 1508.43 mg | 0.6% | 99.8% | Vendor-published | |
| Tirzepatide | 3122026TR | Bioviridian Inc. | 10 mg | 10.82 mg | 8.2% | 99.8% | Vendor-published | |
| Ipamorelin | 3162026IPA | Bioviridian Inc. | 10 mg | 10.44 mg | 4.4% | 99.8% | Vendor-published | |
| NAD+ | 2172026ND | Bioviridian Inc. | 1000 mg | 1004.56 mg | 0.5% | 99.8% | Vendor-published | |
| Semaglutide | 2122026SM | Vanguard Laboratory | 5 mg | 5.51 mg | 10.2% | 99.0% | Vendor-published |
Recorded data pointsEvery field with its source, capture date and whether we corroborated it10 verified9 claimed0 not recordedView all →Hide ↑
A tag of verified means we opened the cited source and confirmed the value; published means we recorded the vendor’s own published information, taken at face value. Both count in full; only a value with no checkable source earns nothing. Fields older than 30 days are marked stale.
Testing
- Testing laboratory
- Pass AnalyticalVerifiedStale1 Aug 2026sourceLaboratory named on the certificate document itself. Evidence: “…e: White Lyophilized Powder Endotoxin Threshold: Pass Microbial Analysis (PCR): Pass Analytical Results Test Result Identity (LC-MS) Confirmed Purity (HPLC-UV)…”
- ISO/IEC 17025 accreditation
- YesVerifiedStale1 Aug 2026sourceAccreditation read from the certificate itself by vision extraction of the document. Evidence: “ISO/IEC 17025 accreditation stated on the certificate document.”
- Certificate granularity
- Per lotVerifiedStale1 Aug 2026sourceLot-specific certificates observed directly. Evidence: “Certificates carry lot identifiers tied to individual product variants.”
- Certificate accessibility
- publicVerifiedStale1 Aug 2026editorial checkCertificates were fetched without passing any gate. Evidence: “Certificates were fetched without passing any gate.”
- Labeled vs. actual mg published
- YesVerifiedStale1 Aug 2026sourceLabeled mass is published against assayed mass, not purity alone. Evidence: “Labeled 100 mg, assayed 99.48 mg, purity 99.48% (lot PP-6524116-P, horizonanalytical.com).”
- Historical certificates retained
- YesVerifiedStale1 Aug 2026sourceSuperseded certificates remain reachable, so consistency across lots can be checked. Evidence: “10 certificate documents reachable across 9 current lots, so superseded certificates remain available.”
Business
- Website
- https://primepeptides.coVerifiedStale1 Aug 2026sourceConfirmed reachable by the analysis run. Evidence: “Origin resolved and fetched: https://primepeptides.co”
- Legal entity
- Shopify Inc.PublishedStale1 Aug 2026sourceEntity name as published by the vendor. Not checked against a corporate registry. Evidence: “…of any changes constitutes acceptance of those changes. Our store is hosted on Shopify Inc. They provide us with the online e-commerce platform that allows us…”
- Country
- USVerified28 Sept 2026editorial checkRead from the postal address this vendor publishes (735 State St Ste 524 Santa Barbara, CA 93101). A published address is not proof of an operating location — several vendors in this index use a registered-agent suite — so this records where the vendor says it is, not where it necessarily ships from.
- Physical address
- 735 State St Ste 524 Santa Barbara, CA 93101PublishedStale1 Aug 2026sourcePublished by the vendor. Confirmed present on the page; not independently confirmed as an operating location. Evidence: “…confirmation when shipped. We offer a 30-day product guarantee. Prime Peptides 735 State St Ste 524 Santa Barbara, CA 93101 Customer Service: (805) 225-3085 Cu…”
- Contact channels
- Email (support@primepeptides.co), Telephone (805) 225-3085PublishedStale1 Aug 2026sourceContact routes published by the vendor. Not tested for a reply, so recorded as published rather than reachable. Evidence: “support@primepeptides.co · (805) 225-3085”
Commercial
- Pricing
- ungatedVerifiedStale1 Aug 2026sourcePrices are published openly and can be compared without registering. Evidence: “…l USA Based Company Offices in California Prime Selections VIEW ALL Retatrutide $ 120.00 Semaglutide $ 80.00 GLP-2 $ 115.00 Sale! Tesamorelin $ 70.00 $ 60.00 BP…”
- Payment methods
- DiscoverPublishedStale1 Aug 2026sourcePayment methods as listed by the vendor. Not confirmed at checkout. Evidence: “…scientists who demand the extraordinary. shop now Simple. Powerful. Effective. Discover an intuitive way to elevate your research. EXPLORE bundle & save Bundle…”
- Guarantee / reship policy
- Case by caseVerifiedStale1 Aug 2026sourceA replacement is offered but the published policy reserves discretion to deny claims. Evidence: “…ucts or product pricing are subject to change at anytime without notice, at the sole discretion of us. We reserve the right to discontinue any product at any ti…”
Track record
- Independent reviews located
- Not recordedNot recorded
- Mean sentiment (0–5)
- Not recordedNot recorded
- Complaint pattern
- Not recordedNot recorded
Compounds carried
What Prime Peptides charges for each compound, read from its own store: the vial it lists, the price per milligram that implies, and that figure against the median of the vendors this index prices. Below 100% is cheaper than the market.
- Ipamorelin1 cert$6.00 /mg$60.00 for 10 mg97%Visit
- Sermorelin$7.00 /mg$70.00 for 10 mg97%Visit
- Wolverine$6.25 /mg$125 for 20 mg97%Visit
- BPC-157$5.50 /mg$55.00 for 10 mg100%Visit
- GHK-Cu1 cert$0.60 /mg$60.00 for 100 mg100%Visit
- Glutathione1 cert$0.05 /mg$80.00 for 1500 mg100%Visit
- Melanotan II$4.00 /mg$40.00 for 10 mg100%Visit
- Tesamorelin$8.00 /mg$80.00 for 10 mg100%Visit
- Melanotan I$4.50 /mg$45.00 for 10 mg107%Visit
- TB-500$6.50 /mg$65.00 for 10 mg108%Visit
- MOTS-c$6.00 /mg$60.00 for 10 mg109%Visit
- Semax$4.50 /mg$45.00 for 10 mg113%Visit
- AOD-9604$12 /mg$60.00 for 5 mg114%Visit
- NAD+1 cert$0.14 /mg$135 for 1000 mg117%Visit
- Tirzepatide3 certs$10 /mg$100 for 10 mg148%Visit
- Retatrutide1 cert$11 /mg$110 for 10 mg149%Visit
- Semaglutide1 cert$11 /mg$110 for 10 mg169%Visit
Score history
| First recorded | 82.3 · #122 Oct 2026 |
|---|---|
| Best rank | #122 Oct 2026 |
| Today | 75.7 · #16-6.6 since first recorded |
Strengths
- Publishes 10 certificates on its own site; 9 read and recorded here
- Certificates are readable publicly, without an account
- Testing laboratory named on certificates (Pass Analytical)
- Testing laboratory holds ISO/IEC 17025 accreditation
- Operates under a named legal entity (Shopify Inc.)
- Publishes a physical postal address
Weaknesses
- No independent third-party reviews located
What the certificates test
Beyond purity and mass. Each row is an assay the laboratory ran and the verdict its own certificate printed. Coverage is recorded, not figures: these documents are tables, and the specification and the result are not reliably separable once the text is extracted.
- Bacterial endotoxins
- FailLALon 4 of 5
- Identity (mass spectrometry)
- ReportedLC-MSon 4 of 5
- Purity (HPLC)
- ReportedHPLC-UV, HPLC-UV/VIS, UPLCon 5 of 5
- Content / quantitation
- Reportedon 5 of 5
- Appearance
- Reportedon 4 of 5
Safety assays on record: Bacterial endotoxins.
Not reported on the certificates read: Sterility, Elemental impurities / heavy metals, Residual solvents, Microbial / bioburden. A test a certificate does not mention is a test this index holds nothing on — it is not a failure and is not counted as one.
Read 5 Oct 2026 from the certificates themselves. How evidence is recorded.
Third-party reviews
Shown for reference and kept out of the score. Review platforms can be gamed — ratings bought, competitors brigaded, profiles removed — so nothing here is treated as evidence of what is in a vial. The score is computed from certificates and documentation alone.
- Trustpilot
- Profile removed by TrustpilotThis profile has been removed. The business you’re trying to find goes against our guidelines and is no longer visible on Trustpilot.read 1 Oct 2026
- Finnrick
- 37% pass rate across 19 lab testsread 1 Oct 2026 · Finnrick’s own lab tests on samples it obtained, reported as stated; not reproduced here
Regulatory & enforcement record
Authority actions on record against this vendor. Issued by regulators and publicly verifiable — unlike self-reported reviews, these cannot be manufactured, which is why they, and not reviews, drive the track-record score.
- Warning letterFDA · 2024-12-10
FDA warning letter to Prime Vitality, Inc. dba Prime Peptides for selling unapproved new drugs marketed as peptides (Semaglutide and Retatrutide) on primepeptides.co in violation of sections 505(a) and 301(d) of the FD&C Act.
Source →
How this score was calculatedEvery signal, its weight and the arithmetic — reconstructable by handrubric v1.11.0View calculation →Hide ↑
Each criterion is scored out of 100 over the signals we could assess, then weighted into the overall figure. Within a criterion, a signal contributes weight × merit × credit: merit is how good the recorded value is, credit is what its provenance earns — 1.00 for a value with a checkable source, 0 for a value recorded without one. A missing signal counts as a partial gap — half its weight — so a vendor that publishes what others leave blank scores higher, while a blank still costs; a value recorded without a source counts in full and earns nothing, so omitting one can never raise a score. A criterion with no data at all — track record when no independent reviews are locatable — is set aside and the remaining weights renormalised; the coverage figure, shown alongside, reports how complete the assessment is.
Testing transparency
90 / 100 · weight 26% → 23.4
Is the testing lab named? Is it ISO/IEC 17025 accredited? Are certificates of analysis lot-specific, and can anyone read them without an account?
| Signal | Recorded value | Provenance | Weight | Merit | Credit | Points |
|---|---|---|---|---|---|---|
| Testing lab is namedA specific laboratory is identified, so the assay can be traced. | Pass AnalyticalLaboratory named on the certificate document itself. Evidence: “…e: White Lyophilized Powder Endotoxin Threshold: Pass Microbial Analysis (PCR): Pass Analytical Results Test Result Identity (LC-MS) Confirmed Purity (HPLC-UV)…” | VerifiedStale1 Aug 2026 · source | 1 | 1.00 | 1.00 × 0.9 stale | 0.90 / 1 |
| Lab holds ISO/IEC 17025 accreditationAccredited to ISO/IEC 17025 for the relevant test scope. | ISO/IEC 17025Accreditation read from the certificate itself by vision extraction of the document. Evidence: “ISO/IEC 17025 accreditation stated on the certificate document.” | VerifiedStale1 Aug 2026 · source | 4 | 1.00 | 1.00 × 0.9 stale | 3.60 / 4 |
| Certificate granularityCertificates are lot-specific, so a certificate maps to the vial received. | Per lotLot-specific certificates observed directly. Evidence: “Certificates carry lot identifiers tied to individual product variants.” | VerifiedStale1 Aug 2026 · source | 3 | 1.00 | 1.00 × 0.9 stale | 2.70 / 3 |
| Certificates readable without an accountAnyone, including us, can read the certificates without registering. | PublicCertificates were fetched without passing any gate. Evidence: “Certificates were fetched without passing any gate.” | VerifiedStale1 Aug 2026 | 4 | 1.00 | 1.00 × 0.9 stale | 3.60 / 4 |
| Recognised testing laboratory9 of 9 certificates name a real, identifiable testing laboratory (a known lab, or a clearly independent one). Certificates with no named lab, or where the "lab" is just the vendor's own name, do not count — anyone can print those. | 9 / 9 recognised lab | PublishedStale16 Jul 2026 · source | 6 | 1.00 | 1.00 × 0.9 stale | 5.40 / 6 |
| Testing transparency subtotal · coverage 93% | 16.20 / 18 | |||||
Documentation depth
86 / 100 · weight 22% → 18.9
Does the vendor publish labeled-versus-actual milligram figures, retain historical certificates, and how large are the discrepancies we can measure?
| Signal | Recorded value | Provenance | Weight | Merit | Credit | Points |
|---|---|---|---|---|---|---|
| Labeled vs. actual mg publishedQuantitative fill data is published, not only a purity percentage. | PublishedLabeled mass is published against assayed mass, not purity alone. Evidence: “Labeled 100 mg, assayed 99.48 mg, purity 99.48% (lot PP-6524116-P, horizonanalytical.com).” | VerifiedStale1 Aug 2026 · source | 1 | 1.00 | 1.00 × 0.9 stale | 0.90 / 1 |
| Historical certificates retainedPast certificates remain accessible, so consistency over time can be checked. | RetainedSuperseded certificates remain reachable, so consistency across lots can be checked. Evidence: “10 certificate documents reachable across 9 current lots, so superseded certificates remain available.” | VerifiedStale1 Aug 2026 · source | 3 | 1.00 | 1.00 × 0.9 stale | 2.70 / 3 |
| Certificates the vendor publishes10 certificates located, 9 of them indexed with readable results; full credit at six. | 10 published, 9 indexed | PublishedStale16 Jul 2026 · source | 7 | 1.00 | 1.00 × 0.9 stale | 6.30 / 7 |
| Labeled vs. actual discrepancyMean absolute deviation between labeled and assayed mass across 9 certificates. Zero scores full marks; 10% or worse scores nothing. | 7.0% mean | PublishedStale16 Jul 2026 · source | 1 | 0.30 | 1.00 × 0.9 stale | 0.27 / 1 |
| Certificate recencyThe most recent certificate is dated 2026-07-16, about 3 months ago. Certificates within a year score full marks; two years or older scores nothing. | newest 2026-07-16 | PublishedStale16 Jul 2026 · source | 4 | 1.00 | 1.00 × 0.9 stale | 3.60 / 4 |
| Documentation depth subtotal · coverage 98% | 13.77 / 16 | |||||
Price & value
65 / 100 · weight 20% → 13
How the vendor’s per-milligram prices for a standard basket of common compounds compare to the market. Priced below the peer median scores higher; well above it scores lower. An overpriced vendor cannot outrank a comparably documented, better-priced one.
| Signal | Recorded value | Provenance | Weight | Merit | Credit | Points |
|---|---|---|---|---|---|---|
| Price vs market ($/mg)Priced about 0% below the peer median per milligram across a standard basket — better value than the typical vendor. | 100% of medianPrice index 100% of peer median across 11 compounds (0 outliers dropped): semax $4.5/mg, ghk-cu $0.6/mg, mots-c $6/mg, tb-500 $6.5/mg, bpc-157 $5.5/mg, aod-9604 $12/mg, ipamorelin $6/mg, sermorelin $7/mg. | Verified6 Oct 2026 · source | 10 | 0.65 | 1.00 | 6.50 / 10 |
| Price & value subtotal · coverage 100% | 6.50 / 10 | |||||
Track record
31.5 / 100 · weight 12% → 3.8
Adverse regulatory or enforcement action on record — warning letters, import alerts, seizures, criminal charges. Authority-issued and publicly verifiable. Self-reported reviews are deliberately not scored: for this market they can be manufactured.
| Signal | Recorded value | Provenance | Weight | Merit | Credit | Points |
|---|---|---|---|---|---|---|
| Regulatory & enforcement record1 adverse regulatory or enforcement action on record (most serious: warning letter). These are issued by authorities and publicly verifiable. | 1 action1 enforcement action(s) on record. | VerifiedStale5 Aug 2026 · source | 10 | 0.35 | 1.00 × 0.9 stale | 3.15 / 10 |
| Track record subtotal · coverage 90% | 3.15 / 10 | |||||
Business transparency
90 / 100 · weight 12% → 10.8
Is a legal entity named, is there a physical address, and can the vendor be reached?
| Signal | Recorded value | Provenance | Weight | Merit | Credit | Points |
|---|---|---|---|---|---|---|
| Named legal entityA registered entity is named, so there is someone to hold responsible. | Shopify Inc.Entity name as published by the vendor. Not checked against a corporate registry. Evidence: “…of any changes constitutes acceptance of those changes. Our store is hosted on Shopify Inc. They provide us with the online e-commerce platform that allows us…” | PublishedStale1 Aug 2026 · source | 3 | 1.00 | 1.00 × 0.9 stale | 2.70 / 3 |
| Physical address publishedA postal address is published. | 735 State St Ste 524 Santa Barbara, CA 93101Published by the vendor. Confirmed present on the page; not independently confirmed as an operating location. Evidence: “…confirmation when shipped. We offer a 30-day product guarantee. Prime Peptides 735 State St Ste 524 Santa Barbara, CA 93101 Customer Service: (805) 225-3085 Cu…” | PublishedStale1 Aug 2026 · source | 2 | 1.00 | 1.00 × 0.9 stale | 1.80 / 2 |
| Contact channelsDistinct contact routes we could identify. Full credit at two. | Email (support@primepeptides.co), Telephone (805) 225-3085Contact routes published by the vendor. Not tested for a reply, so recorded as published rather than reachable. Evidence: “support@primepeptides.co · (805) 225-3085” | PublishedStale1 Aug 2026 · source | 2 | 1.00 | 1.00 × 0.9 stale | 1.80 / 2 |
| Business transparency subtotal · coverage 100% | 6.30 / 7 | |||||
Commercial clarity
72.3 / 100 · weight 8% → 5.8
Is pricing visible without an account, is there a stated guarantee or reship policy, and are payment methods disclosed?
| Signal | Recorded value | Provenance | Weight | Merit | Credit | Points |
|---|---|---|---|---|---|---|
| Pricing visible without an accountPrices are published openly and can be compared. | UngatedPrices are published openly and can be compared without registering. Evidence: “…l USA Based Company Offices in California Prime Selections VIEW ALL Retatrutide $ 120.00 Semaglutide $ 80.00 GLP-2 $ 115.00 Sale! Tesamorelin $ 70.00 $ 60.00 BP…” | VerifiedStale1 Aug 2026 · source | 4 | 1.00 | 1.00 × 0.9 stale | 3.60 / 4 |
| Guarantee / reship policyWhether the published policy states an outcome in advance or leaves it to discretion. | Case by caseA replacement is offered but the published policy reserves discretion to deny claims. Evidence: “…ucts or product pricing are subject to change at anytime without notice, at the sole discretion of us. We reserve the right to discontinue any product at any ti…” | VerifiedStale1 Aug 2026 · source | 3 | 0.50 | 1.00 × 0.9 stale | 1.35 / 3 |
| Payment methods disclosedDisclosed payment routes. Full credit at three. | DiscoverPayment methods as listed by the vendor. Not confirmed at checkout. Evidence: “…scientists who demand the extraordinary. shop now Simple. Powerful. Effective. Discover an intuitive way to elevate your research. EXPLORE bundle & save Bundle…” | PublishedStale1 Aug 2026 · source | 1 | 0.33 | 1.00 × 0.9 stale | 0.30 / 1 |
| Payment offers buyer recourseAccepts a payment method with buyer recourse — cards or wallets a processor underwrote, so a chargeback is possible if an order goes wrong. | Card / recoursePayment methods as listed by the vendor. Not confirmed at checkout. Evidence: “…scientists who demand the extraordinary. shop now Simple. Powerful. Effective. Discover an intuitive way to elevate your research. EXPLORE bundle & save Bundle…” | PublishedStale1 Aug 2026 · source | 3 | 1.00 | 1.00 × 0.9 stale | 2.70 / 3 |
| Commercial clarity subtotal · coverage 94% | 7.95 / 11 | |||||
Total
| Criterion | Subscore | Weight | Contribution | Coverage |
|---|---|---|---|---|
| Testing transparency | 90 | 26% | 23.4 | 93% |
| Documentation depth | 86 | 22% | 18.9 | 98% |
| Price & value | 65 | 20% | 13 | 100% |
| Track record | 31.5 | 12% | 3.8 | 90% |
| Business transparency | 90 | 12% | 10.8 | 100% |
| Commercial clarity | 72.3 | 8% | 5.8 | 94% |
| Computed score | 100% | 75.7 | 96% |
Rubric v1.11.0 · 10 verified, 9 claimed, 0 unsourced, 0 not recorded, 18 stale of 19 scored signals
Community
Reviews
Reader reviews are community context only — they are never part of Prime Peptides’s computed PepIndex score, which is built from evidence alone.
No reviews yet. .