Improved Peptides
Re-analysis of the published site located 10 certificate records and wrote 7 mapped to tracked compounds. 6 strengths and 3 weaknesses recorded from the findings.
Last verified · 6 certificate records · rubric v1.10.0 · improvedpeptides.com
PepIndex score
70 / 100
3.5/ 5Well documentedData coverage
89%
Coverage is the share of scored fields we hold and corroborated for Improved 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.
Strengths
- Publishes 10 lot-specific certificates across its catalogue
- Certificates are readable publicly, without an account
- Testing laboratory named on certificates (Principal Chemist)
- Publishes a physical postal address
- Prices are visible without an account
- Retains historical certificates for comparison over time
Weaknesses
- No ISO/IEC 17025 accreditation recorded for the testing lab
- No registered legal entity is disclosed
- No independent third-party reviews located
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.
Recorded data pointsEvery field with its source, capture date and whether we corroborated it8 verified9 claimed2 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 90 days are marked stale.
Testing
- Testing laboratory
- Principal ChemistVerified3 Aug 2026sourceLaboratory read from the certificate itself by vision extraction of the document. Evidence: “Laboratory named on the certificate document: Principal Chemist.”
- ISO/IEC 17025 accreditation
- Not recordedNot recorded
- Certificate granularity
- Per batchPublished3 Aug 2026sourceBatch-level certificates described by the vendor; no lot-specific certificate was reachable. Evidence: “…sit. Standard and expedited options are available at checkout. Where can I find Certificates of Analysis? + Batch-specific Certificates of Analysis are accessib…”
- Certificate accessibility
- publicVerified3 Aug 2026editorial checkCertificates were fetched without passing any gate. Evidence: “Certificates were fetched without passing any gate.”
- Labeled vs. actual mg published
- YesVerified3 Aug 2026sourceLabeled mass is published against assayed mass, not purity alone. Evidence: “Labeled 10 mg, assayed 11.81 mg, purity 99.18% (lot IP-BPC-2026-001, Principal Chemist).”
- Historical certificates retained
- YesVerified3 Aug 2026editorial checkSuperseded certificates remain reachable, so consistency across lots can be checked. Evidence: “10 certificate documents reachable across 8 current lots, so superseded certificates remain available.”
Business
- Website
- https://improvedpeptides.comVerified3 Aug 2026sourceConfirmed reachable by the analysis run. Evidence: “Origin resolved and fetched: https://improvedpeptides.com”
- Legal entity
- Not recordedNot recorded
- Country
- Not recordedNot recorded
- Physical address
- 9905 S Pennsylvania Ave Ste A, Oklahoma City, OK 73159Published3 Aug 2026sourcePublished by the vendor. Confirmed present on the page; not independently confirmed as an operating location. Evidence: “…cy or how we handle your personal information, contact us: Improved Company LLC 9905 S Pennsylvania Ave Ste A, Oklahoma City, OK 73159 Email: support@improvedpe…”
- Contact channels
- Email (support@improvedpeptides.com)Published3 Aug 2026sourceContact routes published by the vendor. Not tested for a reply, so recorded as published rather than reachable. Evidence: “support@improvedpeptides.com”
Commercial
- Pricing
- ungatedVerified3 Aug 2026sourcePrices are published openly and can be compared without registering. Evidence: “…full COA published. FREE SHIPPING Free standard on every order. Free 2-day over $200, ships same day by 3 PM CT. =768px: single-row band, headline left, tier ma…”
- Payment methods
- Visa, Mastercard, Zelle, PayPal, American Express, Discover, CryptocurrencyPublished3 Aug 2026sourcePayment methods as listed by the vendor. Not confirmed at checkout. Evidence: “…y testing data for every batch. What payment methods do you accept? + We accept Visa, Mastercard, PayPal, Venmo, and Zelle. All transactions are processed throu…”
- Guarantee / reship policy
- Case by caseVerified3 Aug 2026sourceA replacement is offered but the published policy reserves discretion to deny claims. Evidence: “…by Improved Peptides. We reserve the right to refuse or cancel any order at our sole discretion, including but not limited to cases of suspected fraud, unauthor…”
Track record
- Independent reviews located
- Not recordedNot recorded
- Mean sentiment (0–5)
- Not recordedNot recorded
- Complaint pattern
- Not recordedNot recorded
Certificate recordsLot-level results with labeled versus assayed mass6 lots22.7% 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 | Source |
|---|---|---|---|---|---|---|---|---|
| BPC-157 | IP-BPC-2026-001 | Principal Chemist | 10 mg | 11.81 mg | 18.1% | 99.2% | Vendor-published | |
| GHK-Cu | IP-GHKCU-2026-001 | Not named on certificate | 50 mg | 58.63 mg | 17.3% | 99.8% | Vendor-published | |
| MOTS-c | IP-MOTSC-2026-001 | Confirmed | 10 mg | 10.65 mg | 6.5% | 99.0% | Vendor-published | |
| TB-500 | IP-TB500-2026-001 | Principal Chemist | 10 mg | 11.76 mg | 17.6% | 99.1% | Vendor-published | |
| Tesamorelin | IP-TESA-2026-001 | Not named on certificate | 5 mg | 1.23 mg | 75.4% | 99.7% | Vendor-published | |
| Melanotan I | PT-7F4B6DEAFFB3-1 | Krause Analytical LLC | 10 mg | 9.87 mg | 1.3% | 99.9% | Vendor-published |
Compounds carried
- 5-Amino-1MQ
- BPC-157
- CJC-1295
- DSIP
- Epithalon
- GHK-Cu
- KPV
- Melanotan I
- Melanotan II
- MOTS-c
- NAD+
- PT-141
- Selank
- Semax
- TB-500
- Tesamorelin
What the research says about what Improved Peptides sells
BPC-157
What the research on BPC-157 actually shows
5 not established
CJC-1295
What the research on CJC-1295 actually shows
3 not established
DSIP
What the research on DSIP actually shows
3 not established
Epithalon
What the research on Epithalon actually shows
3 not established
GHK-Cu
What the research on GHK-Cu actually shows
3 not established
Melanotan I
What the research on Melanotan I actually shows
3 not established
Melanotan II
What the research on Melanotan II actually shows
3 not established
MOTS-c
What the research on MOTS-c actually shows
3 not established
NAD+
What the research on NAD+ actually shows
3 not established
PT-141
What the research on PT-141 actually shows
3 not established
Selank
What the research on Selank actually shows
3 not established
Semax
What the research on Semax actually shows
3 not established
TB-500
What the research on TB-500 actually shows
4 not established
Tesamorelin
What the research on Tesamorelin actually shows
3 not established
A vendor’s score measures what it can demonstrate about its testing. It says nothing about whether the compounds it lists have evidence behind them — those are separate questions, and the digests above answer the second one.
How this score was calculatedEvery signal, its weight and the arithmetic — reconstructable by handrubric v1.10.0View 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
48.1 / 100 · weight 26% → 12.5
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. | Principal ChemistLaboratory read from the certificate itself by vision extraction of the document. Evidence: “Laboratory named on the certificate document: Principal Chemist.” | Verified3 Aug 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 cover a batch rather than an individual lot. | Per batchBatch-level certificates described by the vendor; no lot-specific certificate was reachable. Evidence: “…sit. Standard and expedited options are available at checkout. Where can I find Certificates of Analysis? + Batch-specific Certificates of Analysis are accessib…” | Published3 Aug 2026 · source | 3 | 0.60 | 1.00 | 1.80 / 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.” | Verified3 Aug 2026 | 4 | 1.00 | 1.00 | 4.00 / 4 |
| Recognised testing laboratory1 of 6 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. | 1 / 6 recognised lab | PublishedStale29 Apr 2026 · source | 6 | 0.17 | 1.00 × 0.9 stale | 0.90 / 6 |
| Testing transparency subtotal · coverage 78% | 7.70 / 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 11.81 mg, purity 99.18% (lot IP-BPC-2026-001, Principal Chemist).” | Verified3 Aug 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: “10 certificate documents reachable across 8 current lots, so superseded certificates remain available.” | Verified3 Aug 2026 | 3 | 1.00 | 1.00 | 3.00 / 3 |
| Certificates the vendor publishes10 certificates located, 6 of them indexed with readable results; full credit at six. | 10 published, 6 indexed | PublishedStale29 Apr 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 6 certificates. Zero scores full marks; 10% or worse scores nothing. | 22.7% mean | PublishedStale29 Apr 2026 · source | 1 | 0.00 | 1.00 × 0.9 stale | 0.00 / 1 |
| Certificate recencyThe most recent certificate is dated 2026-04-29, about 4 months ago. Certificates within a year score full marks; two years or older scores nothing. | newest 2026-04-29 | PublishedStale29 Apr 2026 · source | 4 | 1.00 | 1.00 × 0.9 stale | 3.60 / 4 |
| Documentation depth subtotal · coverage 100% | 13.90 / 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 15 compounds (0 outliers dropped): kpv $6/mg, dsip $9/mg, semax $4.9/mg, ghk-cu $0.78/mg, mots-c $6.9/mg, pt-141 $4.5/mg, selank $4.9/mg, tb-500 $6.5/mg. | Verified31 Aug 2026 · source | 10 | 0.65 | 1.00 | 6.50 / 10 |
| Price & value subtotal · coverage 100% | 6.50 / 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 | Verified9 Sept 2026 | 10 | 1.00 | 1.00 | 10.00 / 10 |
| Track record subtotal · coverage 100% | 10.00 / 10 | |||||
Business transparency
54.5 / 100 · weight 12% → 6.5
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 entityNot recorded. | — | Not recorded | 3 | 0.00 | not recorded | 0.00 / 3 |
| Physical address publishedA postal address is published. | 9905 S Pennsylvania Ave Ste A, Oklahoma City, OK 73159Published by the vendor. Confirmed present on the page; not independently confirmed as an operating location. Evidence: “…cy or how we handle your personal information, contact us: Improved Company LLC 9905 S Pennsylvania Ave Ste A, Oklahoma City, OK 73159 Email: support@improvedpe…” | Published3 Aug 2026 · source | 2 | 1.00 | 1.00 | 2.00 / 2 |
| Contact channelsDistinct contact routes we could identify. Full credit at two. | Email (support@improvedpeptides.com)Contact routes published by the vendor. Not tested for a reply, so recorded as published rather than reachable. Evidence: “support@improvedpeptides.com” | Published3 Aug 2026 · source | 2 | 0.50 | 1.00 | 1.00 / 2 |
| Business transparency subtotal · coverage 57% | 3.00 / 7 | |||||
Commercial clarity
86.4 / 100 · weight 8% → 6.9
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: “…full COA published. FREE SHIPPING Free standard on every order. Free 2-day over $200, ships same day by 3 PM CT. =768px: single-row band, headline left, tier ma…” | Verified3 Aug 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: “…by Improved Peptides. We reserve the right to refuse or cancel any order at our sole discretion, including but not limited to cases of suspected fraud, unauthor…” | Verified3 Aug 2026 · source | 3 | 0.50 | 1.00 | 1.50 / 3 |
| Payment methods disclosedDisclosed payment routes. Full credit at three. | Visa, Mastercard, Zelle, PayPal, American Express, Discover, CryptocurrencyPayment methods as listed by the vendor. Not confirmed at checkout. Evidence: “…y testing data for every batch. What payment methods do you accept? + We accept Visa, Mastercard, PayPal, Venmo, and Zelle. All transactions are processed throu…” | Published3 Aug 2026 · source | 1 | 1.00 | 1.00 | 1.00 / 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: “…y testing data for every batch. What payment methods do you accept? + We accept Visa, Mastercard, PayPal, Venmo, and Zelle. All transactions are processed throu…” | Published3 Aug 2026 · source | 3 | 1.00 | 1.00 | 3.00 / 3 |
| Commercial clarity subtotal · coverage 100% | 9.50 / 11 | |||||
Total
| Criterion | Subscore | Weight | Contribution | Coverage |
|---|---|---|---|---|
| Testing transparency | 48.1 | 26% | 12.5 | 78% |
| Documentation depth | 86.9 | 22% | 19.1 | 100% |
| Price & value | 65 | 20% | 13 | 100% |
| Track record | 100 | 12% | 12 | 100% |
| Business transparency | 54.5 | 12% | 6.5 | 57% |
| Commercial clarity | 86.4 | 8% | 6.9 | 100% |
| Computed score | 100% | 70 | 89% |
Rubric v1.10.0 · 8 verified, 9 claimed, 0 unsourced, 2 not recorded, 4 stale of 19 scored signals
Community
Reviews
Reader reviews are community context only — they are never part of Improved Peptides’s computed PepIndex score, which is built from evidence alone.
No reviews yet. .