Is Good Science Bio trustworthy?

PepIndex scores Good Science Bio 79.2 of 100 on 75% data coverage, ranked 16 of 55, computed from the sourced data points on its profile. Re-analysis of the published site located 3 certificate records and wrote 0 mapped to tracked compounds. 5 strengths and 4 weaknesses recorded from the findings.

Does Good Science Bio publish third-party lab testing?

The named testing laboratory is Vanguard, verified against the certificates we read. Certificates can be read without an account. PepIndex has indexed 0 certificate records for this vendor. A vendor-published certificate is treated as a claim, not as corroboration.

What compounds does Good Science Bio list?

Good Science Bio lists 0 of the compounds tracked in this index. Catalog contents are recorded from the vendor's own listing pages on the date shown.

Rank 16 of 55Data current · 36d ago

Good Science Bio

Re-analysis of the published site located 3 certificate records and wrote 0 mapped to tracked compounds. 5 strengths and 4 weaknesses recorded from the findings.

Last verified 3 Aug 2026 · 0 certificate records · rubric v1.10.0 · goodsciencebio.com

Visit Good Science Bio

79.2

PepIndex score

79.2 / 100

4.0/ 5Well documented

Data coverage

75%

Coverage is the share of scored fields we hold and corroborated for Good Science Bio. 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 30 lot-specific certificates across its catalogue
Certificates are readable publicly, without an account
Testing laboratory named on certificates (Vanguard)
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 physical postal address is published
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 it10 verified3 claimed6 not recordedView all →

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: VanguardVerified3 Aug 2026sourceLaboratory read from the certificate itself by vision extraction of the document. Evidence: “Laboratory named on the certificate document: Vanguard.”
ISO/IEC 17025 accreditation: Not recordedNot recorded
Certificate granularity: Not recordedNot recorded
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 9.5 mg, purity 95% (lot ABC123, LabAlpha).”
Historical certificates retained: YesVerified3 Aug 2026editorial checkSuperseded certificates remain reachable, so consistency across lots can be checked. Evidence: “30 certificate documents reachable across 3 current lots, so superseded certificates remain available.”

Business

Website: https://goodsciencebio.comVerified3 Aug 2026sourceConfirmed reachable by the analysis run. Evidence: “Origin resolved and fetched: https://goodsciencebio.com”
Legal entity: Not recordedNot recorded
Country: Not recordedNot recorded
Physical address: Not recordedNot recorded
Contact channels: Telephone (323) 498-3596Published3 Aug 2026sourceContact routes published by the vendor. Not tested for a reply, so recorded as published rather than reachable. Evidence: “(323) 498-3596”

Commercial

Pricing: ungatedVerified3 Aug 2026sourcePrices are published openly and can be compared without registering. Evidence: “…d, Drug, and Cosmetic act. Your Cart Your cart is empty Start Shopping Subtotal $0.00 Continue Shopping Checkout”
Payment methods: Visa, Mastercard, American Express, Discover, Apple Pay, ZellePublished3 Aug 2026sourcePayment methods as listed by the vendor. Not confirmed at checkout. Evidence: “…research. Create an account before checkout, then complete eligible orders with Visa, American Express, or Discover credit cards, Apple Pay, or Zelle. What paym…”
Guarantee / reship policy: Case by caseVerified3 Aug 2026sourceA replacement is offered but the published policy reserves discretion to deny claims. Evidence: “…der. Good Science may deny service, refuse orders, or terminate accounts at its sole discretion, including for suspected misuse or violation of these terms. 4.…”

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 mass0 lotsView all →

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.

No certificate records are indexed. Either none are published, or those published could not be read without an account.

Compounds carried

What the research says about what Good Science Bio sells

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 →

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

75.9 / 100 · weight 26% → 19.7

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.	VanguardLaboratory read from the certificate itself by vision extraction of the document. Evidence: “Laboratory named on the certificate document: Vanguard.”	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 granularityNot recorded.	—	Not recorded	3	0.00	not recorded	0.00 / 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.”	Verified3 Aug 2026	4	1.00	1.00	4.00 / 4
Recognised testing laboratoryNo per-lot certificate records are on file, but the named testing laboratory (Vanguard) is a recognised third-party lab. Scored on that named lab at the provenance of the claim — a sourced, verified naming earns full credit; an unsourced one earns none.	Vanguard (named lab)Laboratory read from the certificate itself by vision extraction of the document. Evidence: “Laboratory named on the certificate document: Vanguard.”	Verified3 Aug 2026 · source	6	1.00	1.00	6.00 / 6
Testing transparency subtotal · coverage 61%						11.00 / 18

Documentation depth

81.5 / 100 · weight 22% → 17.9

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 10 mg, assayed 9.5 mg, purity 95% (lot ABC123, LabAlpha).”	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: “30 certificate documents reachable across 3 current lots, so superseded certificates remain available.”	Verified3 Aug 2026	3	1.00	1.00	3.00 / 3
Certificates the vendor publishes30 certificates located; full credit at six.	30 publishedCount of per-lot certificates the vendor publishes that the run located, readable or image scan. Evidence: “30 distinct certificate documents were reached and confirmed published during the run.”	Verified3 Aug 2026	7	1.00	1.00	7.00 / 7
Labeled vs. actual discrepancyNot recorded.	—	Not recorded	1	0.00	not recorded	0.00 / 1
Certificate recencyNot recorded.	—	Not recorded	4	0.00	not recorded	0.00 / 4
Documentation depth subtotal · coverage 69%						11.00 / 16

Price & value

100 / 100 · weight 20% → 20

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 36% below the peer median per milligram across a standard basket — better value than the typical vendor.	64% of medianPrice index 64% of peer median across 25 compounds (2 outliers dropped): mots-c $2.25/mg, bpc-157 $2.25/mg, tb-500 $4/mg, semax $5.34/mg, selank $6.5/mg, cjc-1295 $4.5/mg, epithalon $1.64/mg, ghk-cu $0.4/mg.	Verified31 Aug 2026 · source	10	1.00	1.00	10.00 / 10
Price & value subtotal · coverage 100%						10.00 / 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	Verified8 Sept 2026	10	1.00	1.00	10.00 / 10
Track record subtotal · coverage 100%						10.00 / 10

Business transparency

22.2 / 100 · weight 12% → 2.7

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 publishedNot recorded.	—	Not recorded	2	0.00	not recorded	0.00 / 2
Contact channelsDistinct contact routes we could identify. Full credit at two.	Telephone (323) 498-3596Contact routes published by the vendor. Not tested for a reply, so recorded as published rather than reachable. Evidence: “(323) 498-3596”	Published3 Aug 2026 · source	2	0.50	1.00	1.00 / 2
Business transparency subtotal · coverage 29%						1.00 / 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: “…d, Drug, and Cosmetic act. Your Cart Your cart is empty Start Shopping Subtotal $0.00 Continue Shopping Checkout”	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: “…der. Good Science may deny service, refuse orders, or terminate accounts at its sole discretion, including for suspected misuse or violation of these terms. 4.…”	Verified3 Aug 2026 · source	3	0.50	1.00	1.50 / 3
Payment methods disclosedDisclosed payment routes. Full credit at three.	Visa, Mastercard, American Express, Discover, Apple Pay, ZellePayment methods as listed by the vendor. Not confirmed at checkout. Evidence: “…research. Create an account before checkout, then complete eligible orders with Visa, American Express, or Discover credit cards, Apple Pay, or Zelle. What paym…”	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: “…research. Create an account before checkout, then complete eligible orders with Visa, American Express, or Discover credit cards, Apple Pay, or Zelle. What paym…”	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	75.9	26%	19.7	61%
Documentation depth	81.5	22%	17.9	69%
Price & value	100	20%	20	100%
Track record	100	12%	12	100%
Business transparency	22.2	12%	2.7	29%
Commercial clarity	86.4	8%	6.9	100%
Computed score		100%	79.2	75%

Rubric v1.10.0 · 10 verified, 3 claimed, 0 unsourced, 6 not recorded, 0 stale of 19 scored signals

Community

Reviews

Reader reviews are community context only — they are never part of Good Science Bio’s computed PepIndex score, which is built from evidence alone.

No reviews yet. .