PeptidePlugs
70 third-party certificates are on file across 34 tracked compounds, issued by Freedom Diagnostics Testing. Certificates are readable without an account. Record last re-checked 30 September 2026.
Edited by Slava Melikov, Research Editor · reviewed 30 Sept 2026
Last verified · 70 certificate records · rubric v1.11.0 · peptideplugs.com
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.
Featured in the October 2026 peptide COA report →
PepIndex score
87.6 / 100
4.4/ 5Extensively documentedData coverage
94%
Coverage is the share of scored fields we hold and corroborated for PeptidePlugs. 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 PeptidePlugs legit?
Yes, on the evidence PepIndex holds. We have read 70 certificate records for PeptidePlugs, issued by 2 laboratories, and score it 87.6/100 on 94% data coverage — rank 5 of 57.
- Across those lots the mean assayed purity is 99.67%, and the weakest single lot came back at 99.04%.
- 21 of 70 lots assayed below the mass printed on the label.
- PepIndex holds no ISO/IEC 17025 accreditation record for those laboratories either way.
- 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 PeptidePlugs, 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 mass70 lots10.5% 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.
Recorded data pointsEvery field with its source, capture date and whether we corroborated it11 verified7 claimed1 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
- FreedomDiagnosticsVerified30 Sept 2026sourceLaboratory named on the certificate document itself. Evidence: “…FreedomDiagnosticsTesting.com…”
- ISO/IEC 17025 accreditation
- Not recordedNot recorded
- Certificate granularity
- Per lotVerified30 Sept 2026sourceLot-specific certificates observed directly. Evidence: “Certificates carry lot identifiers tied to individual product variants.”
- Certificate accessibility
- publicVerified30 Sept 2026editorial checkCertificates were fetched without passing any gate. Evidence: “Certificates were fetched without passing any gate.”
- Labeled vs. actual mg published
- YesVerified30 Sept 2026sourceLabeled mass is published against assayed mass, not purity alone. Evidence: “Labeled 10 mg, assayed 11.04 mg, purity 99.82% (lot 101-03-ZB, FreedomDiagnostics).”
- Historical certificates retained
- YesVerified30 Sept 2026sourceSuperseded certificates remain reachable, so consistency across lots can be checked. Evidence: “108 certificate documents reachable across 80 current lots, so superseded certificates remain available.”
Business
- Website
- https://peptideplugs.comVerified30 Sept 2026sourceConfirmed reachable by the analysis run. Evidence: “Origin resolved and fetched: https://peptideplugs.com”
- Legal entity
- Austin Research Products LLCPublished30 Sept 2026sourceEntity name as published by the vendor. Not checked against a corporate registry. Evidence: “…Guarantee Help Contact Shipping Refund policy Terms FAQs © 2026 PeptidePlugs™ · Austin Research Products LLC · For laboratory research use only. Home Builder CO…”
- Country
- USVerified28 Sept 2026editorial checkRead from the postal address this vendor publishes (126 Holmes Rd #8, Liberty Hill, TX 78642). 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
- 126 Holmes Rd #8, Liberty Hill, TX 78642Published30 Sept 2026sourcePublished by the vendor. Confirmed present on the page; not independently confirmed as an operating location. Evidence: “…512-960-7885 . UPS Air Express, free over $200, tracking texted when it leaves. 126 Holmes Rd #8, Liberty Hill, TX 78642 512-960-7885 · sales@peptideplugs.com S…”
- Contact channels
- Email (sales@peptideplugs.com), Telephone 512-960-7885Published30 Sept 2026sourceContact routes published by the vendor. Not tested for a reply, so recorded as published rather than reachable. Evidence: “sales@peptideplugs.com · 512-960-7885”
Commercial
- Pricing
- ungatedVerified30 Sept 2026sourcePrices are published openly and can be compared without registering. Evidence: “…er Skip to content Same-day fulfillment from Liberty Hill // Free shipping over $200 // Call or text 512-960-7885 Builder Shop Testing My orders FAQ Contact Bui…”
- Payment methods
- Zelle, PayPalVerifiedStale29 Aug 2026sourceRead on peptideplugs.com.
- Guarantee / reship policy
- Case by caseVerified30 Sept 2026sourceA replacement is offered but the published policy reserves discretion to deny claims. Evidence: “…ght to request additional verification and to refuse or cancel any order at our sole discretion, including orders we believe may involve intended misuse of our…”
Track record
- Independent reviews located
- Not recordedNot recorded
- Mean sentiment (0–5)
- Not recordedNot recorded
- Complaint pattern
- Not recordedNot recorded
Compounds carried
What PeptidePlugs 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.
- L-Carnitine1 cert$0.03 /mg$40.00 for 1200 mg33%Visit
- NAD+$0.05 /mg$50.00 for 1000 mg42%Visit
- 5-Amino-1MQ5 certs$1.80 /mg$90.00 for 50 mg55%Visit
- BPC-1572 certs$3.00 /mg$60.00 for 20 mg55%Visit
- MOTS-c4 certs$3.00 /mg$30.00 for 10 mg55%Visit
- Wolverine$3.50 /mg$70.00 for 20 mg55%Visit
- DSIP2 certs$4.00 /mg$40.00 for 10 mg57%Visit
- Glutathione2 certs$0.03 /mg$50.00 for 1500 mg60%Visit
- Cagrilintide1 cert$6.00 /mg$60.00 for 10 mg61%Visit
- Ipamorelin3 certs$4.00 /mg$40.00 for 10 mg65%Visit
- GHK-Cu2 certs$0.40 /mg$40.00 for 100 mg67%Visit
- AHK-Cu1 cert$0.50 /mg$50.00 for 100 mg71%Visit
- VIP1 cert$6.00 /mg$60.00 for 10 mg71%Visit
- PE-22-282 certs$4.00 /mg$40.00 for 10 mg74%Visit
- SS-317 certs$4.00 /mg$40.00 for 10 mg74%Visit
- KLOW$1.00 /mg$80.00 for 80 mg76%Visit
- Sermorelin1 cert$5.50 /mg$55.00 for 10 mg76%Visit
- Thymosin Alpha-12 certs$6.00 /mg$60.00 for 10 mg79%Visit
- KPV4 certs$4.00 /mg$40.00 for 10 mg80%Visit
- TB-5003 certs$5.00 /mg$50.00 for 10 mg83%Visit
- Pinealon2 certs$4.00 /mg$40.00 for 10 mg85%Visit
- Tesamorelin3 certs$7.00 /mg$70.00 for 10 mg88%Visit
- ARA-2901 cert$5.00 /mg$50.00 for 10 mg91%Visit
- KPV + GHK-Cu$0.92 /mg$55.00 for 60 mg92%Visit
- Selank1 cert$4.00 /mg$40.00 for 10 mg92%Visit
- IGF-1 LR31 cert$70 /mg$70.00 for 1 mg93%Visit
- Melanotan I1 cert$4.00 /mg$40.00 for 10 mg96%Visit
- Kisspeptin2 certs$5.00 /mg$50.00 for 10 mg96%Visit
- Epithalon3 certs$4.00 /mg$40.00 for 10 mg98%Visit
- Eloralintide2 certs$14 /mg$70.00 for 5 mg100%Visit
- LL-371 cert$12 /mg$60.00 for 5 mg100%Visit
- Melanotan II2 certs$4.00 /mg$40.00 for 10 mg100%Visit
- Semax1 cert$4.00 /mg$40.00 for 10 mg100%Visit
- Vilon1 cert$3.00 /mg$60.00 for 20 mg100%Visit
- AOD-96042 certs$12 /mg$60.00 for 5 mg114%Visit
- SNAP-81 cert$5.00 /mg$50.00 for 10 mg125%Visit
- Oxytocin2 certsNo price capturedVisit
- Thymalin1 certNo price capturedVisit
Score history
| First recorded | 91 · #42 Oct 2026 |
|---|---|
| Best rank | #42 Oct 2026 |
| Today | 87.6 · #5-3.4 since first recorded |
Strengths
- Publishes 108 certificates on its own site; 70 read and recorded here
- Certificates are readable publicly, without an account
- Testing laboratory named on certificates (FreedomDiagnostics)
- Operates under a named legal entity (Austin Research Products LLC)
- Publishes a physical postal address
- Prices are visible without an account
Weaknesses
- No ISO/IEC 17025 accreditation recorded for the testing lab
- 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
- Passon 48 of 69
- Identity (mass spectrometry)
- ReportedLC-MSon 69 of 69
- Purity (HPLC)
- ReportedHPLC-UV, HPLCon 69 of 69
- Content / quantitation
- Reportedon 69 of 69
- Appearance
- Reportedon 69 of 69
- Elemental impurities / heavy metals
- PassICP-MSon 25 of 69
Safety assays on record: Bacterial endotoxins, Elemental impurities / heavy metals.
Not reported on the certificates read: Sterility, 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
- No profileread 1 Oct 2026
- Finnrick
- Listed, no lab testsread 1 Oct 2026
Regulatory & enforcement record
No adverse regulatory or enforcement action on record. We record authority actions — FDA warning letters, import alerts, seizures, criminal charges — when located. Self-reported reviews are deliberately not scored, because for this market they can be manufactured.
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
83.8 / 100 · weight 26% → 21.8
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. | FreedomDiagnosticsLaboratory named on the certificate document itself. Evidence: “…FreedomDiagnosticsTesting.com…” | Verified30 Sept 2026 · source | 1 | 1.00 | 1.00 | 1.00 / 1 |
| Lab holds ISO/IEC 17025 accreditationNot recorded. | — | Not recorded | 4 | 0.00 | not recorded | 0.00 / 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.” | Verified30 Sept 2026 · source | 3 | 1.00 | 1.00 | 3.00 / 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.” | Verified30 Sept 2026 | 4 | 1.00 | 1.00 | 4.00 / 4 |
| Recognised testing laboratory70 of 70 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. | 70 / 70 recognised lab | PublishedStale21 Sept 2026 · source | 6 | 1.00 | 1.00 × 0.9 stale | 5.40 / 6 |
| Testing transparency subtotal · coverage 78% | 13.40 / 18 | |||||
Documentation depth
86.9 / 100 · weight 22% → 19.1
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 10 mg, assayed 11.04 mg, purity 99.82% (lot 101-03-ZB, FreedomDiagnostics).” | Verified30 Sept 2026 · source | 1 | 1.00 | 1.00 | 1.00 / 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: “108 certificate documents reachable across 80 current lots, so superseded certificates remain available.” | Verified30 Sept 2026 · source | 3 | 1.00 | 1.00 | 3.00 / 3 |
| Certificates the vendor publishes108 certificates located, 70 of them indexed with readable results; full credit at six. | 108 published, 70 indexed | PublishedStale21 Sept 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 70 certificates. Zero scores full marks; 10% or worse scores nothing. | 10.5% mean | PublishedStale21 Sept 2026 · source | 1 | 0.00 | 1.00 × 0.9 stale | 0.00 / 1 |
| Certificate recencyThe most recent certificate is dated 2026-09-21, about 1 month ago. Certificates within a year score full marks; two years or older scores nothing. | newest 2026-09-21 | PublishedStale21 Sept 2026 · source | 4 | 1.00 | 1.00 × 0.9 stale | 3.60 / 4 |
| Documentation depth subtotal · coverage 100% | 13.90 / 16 | |||||
Price & value
81.7 / 100 · weight 20% → 16.3
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 17% below the peer median per milligram across a standard basket — better value than the typical vendor. | 83% of medianPrice index 83.3% of peer median across 27 compounds (0 outliers dropped): kpv $4/mg, vip $6/mg, dsip $4/mg, ll-37 $12/mg, semax $4/mg, ss-31 $4/mg, vilon $3/mg, ahk-cu $0.5/mg. | Verified6 Oct 2026 · source | 10 | 0.82 | 1.00 | 8.17 / 10 |
| Price & value subtotal · coverage 100% | 8.17 / 10 | |||||
Track record
100 / 100 · weight 12% → 12
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 recordNo adverse regulatory or enforcement action on record. Authority actions — warning letters, import alerts, seizures, criminal charges — are recorded here when located; self-reported reviews are deliberately not scored, because for this market they can be manufactured. | None on record | Verified24 Oct 2026 | 10 | 1.00 | 1.00 | 10.00 / 10 |
| Track record subtotal · coverage 100% | 10.00 / 10 | |||||
Business transparency
100 / 100 · weight 12% → 12
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. | Austin Research Products LLCEntity name as published by the vendor. Not checked against a corporate registry. Evidence: “…Guarantee Help Contact Shipping Refund policy Terms FAQs © 2026 PeptidePlugs™ · Austin Research Products LLC · For laboratory research use only. Home Builder CO…” | Published30 Sept 2026 · source | 3 | 1.00 | 1.00 | 3.00 / 3 |
| Physical address publishedA postal address is published. | 126 Holmes Rd #8, Liberty Hill, TX 78642Published by the vendor. Confirmed present on the page; not independently confirmed as an operating location. Evidence: “…512-960-7885 . UPS Air Express, free over $200, tracking texted when it leaves. 126 Holmes Rd #8, Liberty Hill, TX 78642 512-960-7885 · sales@peptideplugs.com S…” | Published30 Sept 2026 · source | 2 | 1.00 | 1.00 | 2.00 / 2 |
| Contact channelsDistinct contact routes we could identify. Full credit at two. | Email (sales@peptideplugs.com), Telephone 512-960-7885Contact routes published by the vendor. Not tested for a reply, so recorded as published rather than reachable. Evidence: “sales@peptideplugs.com · 512-960-7885” | Published30 Sept 2026 · source | 2 | 1.00 | 1.00 | 2.00 / 2 |
| Business transparency subtotal · coverage 100% | 7.00 / 7 | |||||
Commercial clarity
80 / 100 · weight 8% → 6.4
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: “…er Skip to content Same-day fulfillment from Liberty Hill // Free shipping over $200 // Call or text 512-960-7885 Builder Shop Testing My orders FAQ Contact Bui…” | Verified30 Sept 2026 · source | 4 | 1.00 | 1.00 | 4.00 / 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: “…ght to request additional verification and to refuse or cancel any order at our sole discretion, including orders we believe may involve intended misuse of our…” | Verified30 Sept 2026 · source | 3 | 0.50 | 1.00 | 1.50 / 3 |
| Payment methods disclosedDisclosed payment routes. Full credit at three. | Zelle, PayPalRead on peptideplugs.com. | VerifiedStale29 Aug 2026 · source | 1 | 0.67 | 1.00 × 0.9 stale | 0.60 / 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 / recourseRead on peptideplugs.com. | VerifiedStale29 Aug 2026 · source | 3 | 1.00 | 1.00 × 0.9 stale | 2.70 / 3 |
| Commercial clarity subtotal · coverage 96% | 8.80 / 11 | |||||
Total
| Criterion | Subscore | Weight | Contribution | Coverage |
|---|---|---|---|---|
| Testing transparency | 83.8 | 26% | 21.8 | 78% |
| Documentation depth | 86.9 | 22% | 19.1 | 100% |
| Price & value | 81.7 | 20% | 16.3 | 100% |
| Track record | 100 | 12% | 12 | 100% |
| Business transparency | 100 | 12% | 12 | 100% |
| Commercial clarity | 80 | 8% | 6.4 | 96% |
| Computed score | 100% | 87.6 | 94% |
Rubric v1.11.0 · 11 verified, 7 claimed, 0 unsourced, 1 not recorded, 6 stale of 19 scored signals
Community
Reviews
Reader reviews are community context only — they are never part of PeptidePlugs’s computed PepIndex score, which is built from evidence alone.
No reviews yet. .