# Gold Standard Analytics

> Analytical testing laboratory in Houston, Texas, with every sample filmed from package opening (est. January 2026). HPLC-UV, LC-MS/MS, GC-MS, ICP-MS, endotoxin (LAL) and USP <71> sterility testing for peptides, SARMs, kratom, supplements, cosmetics, raw materials and environmental samples. Certificates issued with a verification code can be checked at /verify. Procedures modelled on ISO/IEC 17025; not accredited.

Key facts: 5151 Mitchelldale St A10, Houston, TX 77092. team@goldstandardanalytics.com. Phone (346) 770-3170, answered 24/7. Chain-of-custody video and photos retained three years. Samples retained 90 days. No walk-in drop-off; mail-in only. Prices are per sample and published on each service page.

## Start here
- [Homepage](https://www.goldstandardanalytics.com/): what the lab tests, instruments, quality program, refunds
- [Verify a certificate](https://www.goldstandardanalytics.com/verify): enter an accession number (format GSA-2026-018432)
- [Submit samples](https://www.goldstandardanalytics.com/sample-intake): account, services, samples, panels, payment
- [About and contact](https://www.goldstandardanalytics.com/about)
- [Careers](https://www.goldstandardanalytics.com/careers)

## Services
- [Peptide testing: purity, identity and net content](https://www.goldstandardanalytics.com/services/peptide-testing): from $129 per sample
- [SARMs and research-compound potency and identity testing](https://www.goldstandardanalytics.com/services/sarms-testing): from $129 per sample
- [Dietary supplement label-claim, heavy-metal and microbial testing](https://www.goldstandardanalytics.com/services/dietary-supplement-testing): from $129 per sample
- [Cosmetic and skincare active potency, preservative efficacy and microbial testing](https://www.goldstandardanalytics.com/services/cosmetics-testing): from $129 per sample
- [Raw material and API identity, assay, residual solvents and water testing](https://www.goldstandardanalytics.com/services/raw-material-api-testing): from $129 per sample
- [Petroleum hydrocarbon, BTEX and PAH testing in soil, water and oil](https://www.goldstandardanalytics.com/services/hydrocarbon-testing): scope and price confirmed before submission
- [Multi-residue pesticide testing in produce, botanicals, soil and water](https://www.goldstandardanalytics.com/services/pesticide-residue-testing): from $109 per sample
- [Drinking water, food and beverage testing for metals, PFAS and mycotoxins](https://www.goldstandardanalytics.com/services/water-food-beverage-testing): from $145 per sample

## Prices
- HPLC-MS purity and identity: $129 per sample for peptides, SARMs and research actives, supplements, raw materials and APIs, and cosmetics, any compound or blend, GLP-1s included. With net content (mg per vial or unit): $199. Impurity breakdown: +$49.
- Tests: endotoxin (USP <85>) $149; heavy metals (ICP-MS) $199; sterility (USP <71>, 14-day) $199; 3-day bioburden $99, instead of sterility or with it; conformity $49 per extra vial; fentanyl scan $99; enclosure integrity (vial vacuum) $29; pH $49; residual solvents (GC-MS) $299; TFA (ion chromatography) $99; Karl Fischer water $99; solubility (Type I water) $99. Kratom, hemp, pesticide, water and food panels keep their own prices; heavy metals, Karl Fischer, pH and bioburden cost the same wherever they are sold.
- Services: unboxing and sample-prep video $49 per sample; custom COA template or colors $9.99 per order. Every package is opened on camera for the chain-of-custody record either way.
- Packages take a percentage off the same tests bought one by one and apply automatically when your tests cover one: Bronze (identity, purity and the impurity breakdown) 10% off, Silver (Bronze plus net content and endotoxin) 15%, Gold (Silver plus the 3-day bioburden) 20%, Platinum (every test on the list for the sample type) 25%. For one peptide: Bronze $160.20, Silver $337.45, Gold $396.80, Platinum $1,250.25. Tests a sample type is not sold drop out of its packages, and a test an order’s compounds cannot take, such as TFA with NAD+, drops out of the package for that order.
- Volume discounts: 10% off at 10 samples, 15% at 25 and 20% at 50. Standard turnaround is included; expedited adds 50% and priority 100%.
- [Gold Standard Membership](https://www.goldstandardanalytics.com/membership): Gold Standard Membership is $199 a month: one free HPLC-MS test a month (identity, purity, net content and impurity breakdown, one sample), 5% off every test after packages and volume discounts, the unboxing and sample-prep video on every sample, a custom COA template or colors, expedited turnaround at no charge and the owner’s direct line for 24/7 support. Cancel online any time; it ends at the end of the paid month. Join at https://www.goldstandardanalytics.com/account/membership or when you sign up; terms at https://www.goldstandardanalytics.com/terms/membership.

## Programs
- [Group testing](https://www.goldstandardanalytics.com/group-testing): 2–50 people split one sample and one fee
- [Refer and earn](https://www.goldstandardanalytics.com/refer): 20% of a referral's first order, 10% after
- [Shop used lab equipment](https://www.goldstandardanalytics.com/shop) and [sell on the marketplace](https://www.goldstandardanalytics.com/sellers)

## Laboratory notes
- [How to read our certificates of analysis](https://www.goldstandardanalytics.com/notes/how-to-read-our-coas): A Gold Standard certificate has a fixed structure: header, sample identity, method block, results table, chain-of-custody record and signature. Here is what each part means and how to check it.
- [DAD vs VWD in HPLC: what the detector changes about a purity number](https://www.goldstandardanalytics.com/notes/dad-vs-vwd-hplc): Both detectors measure UV absorbance. One measures it at a single wavelength; the other captures a full spectrum at every point of the chromatogram. That difference decides whether a purity result can tell you what the impurities are.
- [ISO/IEC 17025 accreditation: what it means and what it does not](https://www.goldstandardanalytics.com/notes/iso-17025-accreditation-explained): ISO/IEC 17025 is the international standard for testing laboratory competence. Accreditation is a third-party audit against it. We operate to its expectations and are not accredited; here is exactly what each phrase means.
- [USP <71> sterility vs bioburden: they answer different questions](https://www.goldstandardanalytics.com/notes/usp-71-sterility-vs-bioburden): Sterility testing asks whether any viable organism is present in the units tested. Bioburden counts how many are there. For an injectable, only one of these is the release test.
- [Why endotoxin is tested by kinetic chromogenic LAL, and what a PPC is](https://www.goldstandardanalytics.com/notes/why-endotoxin-lal-kinetic): Endotoxin is the cell-wall fragment of gram-negative bacteria that causes fever in an injection even when nothing is alive. USP <85> sets the test; the positive product control is the part that proves the test worked in your sample.

## Lab comparisons
- [Janoshik Analytical vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/janoshik)
- [Freedom Diagnostics vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/freedom-diagnostics)
- [Vanguard Laboratory vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/vanguard)
- [ILS Laboratories vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/ils-labs)
- [Kovera Labs vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/kovera)
- [Axiom Analytics vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/axiom-analytics)
- [Synthesyx Laboratories vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/synthesyx)
- [KMD Analytical vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/kmd-analytical)
- [Optiq Health Labs vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/optiq-health-labs)
- [BioRegen vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/bioregen)
- [Ethos Analytics vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/ethos-analytics)
- [MZ Biolabs vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/mz-biolabs)
- [Peptide Test vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/peptide-test)
- [Chromate vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/chromate)
- [MDx BioAnalytical Laboratory vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/mdx-biolabs)
- [ACS Peptide Testing Labs vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/acs-labs)
- [Horizon Analytical vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/horizon-analytical)
- [ZyntroTest vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/zyntro)
- [SteriGenix Analytical vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/sterigenix)
- [Prodigy Labs vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/prodigy-labs)
- [Krause Analytical vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/krause)
- [TrustPointe Analytics vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/trustpointe)
- [BTLabs vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/bt-labs)
- [Eagle Analytical vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/eagle-analytical)
- [Bioviridian vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/bioviridian)
- [SC Labs vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/sc-labs)
- [Kaycha Labs vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/kaycha-labs)
- [ACS Laboratory (Smithers) vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/acs-laboratory)
- [ACT LAB vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/act-lab)
- [MCR Labs vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/mcr-labs)
- [Infinite Chemical Analysis Labs vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/infinitecal)
- [Steep Hill Illinois vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/steep-hill-illinois)
- [Steep Hill Mississippi vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/steep-hill-mississippi)
- [KCA Laboratories vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/kca-laboratories)
- [ProVerde Laboratories vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/proverde)
- [Green Leaf Lab vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/green-leaf-lab)
- [ChemHistory vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/chemhistory)
- [New Bloom Labs vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/new-bloom-labs)
- [Altitude Consulting vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/altitude-consulting)
- [PharmLabs vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/pharmlabs)
- [Anresco Laboratories vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/anresco)
- [Marin Analytics vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/marin-analytics)
- [Bluebonnet Labs vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/bluebonnet-labs)
- [Delta 9 Analytical vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/delta-9-analytical)
- [Murray-Brown Laboratories vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/murray-brown)
- [Alkemist Labs vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/alkemist)
- [Cambium Analytica vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/cambium-analytica)
- [PharmLabs vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/pharmlabs-kratom)
- [SC Labs vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/sc-labs-kratom)
- [Anresco Laboratories vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/anresco-kratom)
- [Columbia Laboratories vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/columbia-laboratories)
- [ACS Laboratory (Smithers) vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/acs-laboratory-kratom)
- [Altitude Consulting vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/altitude-consulting-kratom)
- [Analytical Resource Laboratories vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/analytical-resource-labs)
- [ACT LAB vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/act-lab-kratom)
- [Alliance Analytical Laboratories vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/alliance-analytical)
- [ProVerde Laboratories vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/proverde-kratom)
- [Wonderland Labs vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/wonderland-labs)
- [Delta 9 Analytical vs Gold Standard Analytics](https://www.goldstandardanalytics.com/compare/delta-9-analytical-kratom)

## Guides
- [Is this COA real? Fake certificate checker](https://www.goldstandardanalytics.com/fake-coa-checker)
- [How much does peptide testing cost?](https://www.goldstandardanalytics.com/peptide-testing-cost)
- [Third-party supplement testing for brands](https://www.goldstandardanalytics.com/third-party-supplement-testing)
- [USP <71> sterility testing](https://www.goldstandardanalytics.com/usp-71-sterility-testing)
- [USP <85> endotoxin testing](https://www.goldstandardanalytics.com/endotoxin-testing-service)
- [Peptide testing labs compared](https://www.goldstandardanalytics.com/compare)
- [Peptide purity explained](https://www.goldstandardanalytics.com/peptide-purity)
- [How to get your peptides tested](https://www.goldstandardanalytics.com/how-to-test-peptides)
- [HPLC and LC-MS/MS testing](https://www.goldstandardanalytics.com/hplc-testing)
- [Mail-in testing from anywhere in the US](https://www.goldstandardanalytics.com/locations)
- [The Houston laboratory](https://www.goldstandardanalytics.com/locations/houston)

## Developers
- [Developer overview](https://www.goldstandardanalytics.com/developers)
- [API reference](https://www.goldstandardanalytics.com/developers/api)
- [OpenAPI 3.1](https://www.goldstandardanalytics.com/api/v1/openapi.json)
- [MCP server manifest](https://www.goldstandardanalytics.com/api/mcp-manifest.json)
- [Certificate lookup](https://www.goldstandardanalytics.com/api/coa/GSA-2026-018432.json): one certificate as JSON by accession ({accession}.json), CC BY 4.0, no key

## Policies
- [Terms of service](https://www.goldstandardanalytics.com/terms)
- [Refunds](https://www.goldstandardanalytics.com/refunds)
- [Privacy](https://www.goldstandardanalytics.com/privacy)
- [Accessibility](https://www.goldstandardanalytics.com/accessibility)
- [Compliance](https://www.goldstandardanalytics.com/compliance)

## Optional
- [llms-full.txt](https://www.goldstandardanalytics.com/llms-full.txt): expanded version with service methods, instruments and FAQ answers