How much does peptide testing cost?
Identity and purity together are $129 for any peptide or blend, GLP-1s included, and $199 with net content. Everything else is an add-on you can see priced before you pay, and the same number appears on the quote, the invoice and the certificate.
Prices per test
| Test | Method | Price |
|---|---|---|
| HPLC-MS purity and identity, any peptide or blend | MethodPurity by HPLC-UV at 214 nm, identity by LC-MS/MS; GLP-1s included | Price$129 |
| HPLC-MS purity and identity with net content | MethodAdds mg of peptide per vial and % of label claim against a certified reference standard | Price$199 |
| Impurity breakdown | MethodEvery impurity peak listed with its share of the UV area and what it is by mass | Price+$49 |
| Endotoxin, USP <85> | MethodKinetic chromogenic LAL; extra vial | Price+$149 |
| Sterility, USP <71>, 14-day | MethodMembrane filtration; extra vial | Price+$199 |
| Bioburden, 3-day | MethodMicrobial count read at 3 days; instead of USP <71> sterility or with it | Price+$99 |
| Heavy metals, ICP-MS, USP <232>/<233> | MethodArsenic, cadmium, lead and mercury; extra vial | Price+$199 |
| Fentanyl scan | MethodFentanyl and common analogs by LC-MS/MS | Price+$99 |
| Enclosure integrity, vial vacuum | MethodThe sealed vial's residual vacuum, measured before it is opened, in PSI | Price+$29 |
| pH | MethodCalibrated pH meter, as reconstituted | Price+$49 |
| Residual solvents, USP <467>, GC-MS | MethodHeadspace GC-MS, reported against LOQ; extra vial | Price+$299 |
| TFA by ion chromatography | MethodTrifluoroacetate counter-ion; extra vial | Price+$99 |
| Karl Fischer water content | MethodCoulometric titration, % w/w | Price+$99 |
| Solubility in Type I water | MethodWhether the sample dissolves completely in ultrapure water, at the concentration used | Price+$99 |
| Conformity, extra vials for lot variance | MethodThe ordered tests repeated on further vials from the same lot | Price+$49 per extra vial |
| Post-reconstitution stability, 7-day | MethodRe-assayed at 0, 3 and 7 days at 2–8 °C; extra vial; not part of the packages | Price+$149 |
| Unboxing and sample-prep video | MethodYour copy of the video of your package being opened and the sample prepared; included for members | Price+$49 per sample |
| Custom COA template or colors | MethodYour certificates in your own template or brand colors; included for members | Price+$9.99 per order |
What other peptide testing labs charge
Identity and purity for one standard research peptide costs about $129 to $350 at the labs below, as each published it on October 28, 2026. GLP-1 and specialty peptides usually cost more at other labs (not at Gold Standard Analytics, where every peptide is one price), and shipping is extra.
| Laboratory | Identity and purity | Endotoxin | Sterility | Heavy metals |
|---|---|---|---|---|
| Gold Standard Analytics Houston, TX | Identity and purity$129 $199 with net content; same price for GLP-1s and blends | Endotoxin+$149 USP <85> | Sterility+$199 USP <71>, 14-day | Heavy metals+$199 ICP-MS |
| Freedom Diagnostics Franklin, TN | Identity and purity$200 net content +$25 | Endotoxin$175 | Sterility$150 PCR screen | Heavy metals$100 |
| Vanguard Laboratory Olympia, WA | Identity and purity$250 purity, quantity, identity | Endotoxin$210 | Sterility$150 USP <71> | Heavy metals$150 |
| ILS Laboratories San Diego, CA | Identity and purity$200 HPLC panel | EndotoxinIn $600 panel | SterilityIn $600 panel rapid screen | Heavy metalsIn $600 panel |
| Janoshik Analytical Prague, Czech Republic | Identity and purity$215 GLP-1 blind test $360 | Endotoxin$180 | Sterility$290 TAMC and TYMC | Heavy metals$145 EDX screen; add-on $105 |
| Prodigy Labs San Diego, CA | Identity and purity$225 LC-MS identity +$250 | Endotoxin$175 | Sterility$300 USP <71> | Heavy metals$275 |
| Kovera Labs Buffalo Grove, IL | Identity and purity$200 purity, net content, identity | Endotoxin$120 | Sterility$200 14-day; screen $120 | Heavy metals$120 |
| Chromate Hudson, NH | Identity and purity$180 HPLC per compound | Endotoxin$240 | Sterility$240 USP <71> | Heavy metalsNot published |
| TrustPointe Analytics Dorr, MI | Identity and purity$200 | Endotoxin$300 USP <85> | Sterility$300 USP <71> | Heavy metals$500 EPA 200/245 |
| Peptide Test Michigan | Identity and purity$200 | Endotoxin$300 | Sterility$300 | Heavy metals$500 EPA 200/245 |
| ACS Peptide Testing Labs Sun City Center, FL | Identity and purityFrom $350 purity + identity, $350–$650 | EndotoxinFrom $175 $175–$350 | SterilityNot published | Heavy metalsFrom $200 $200–$450 |
| Accumark Labs Anaheim, CA | Identity and purity$250 identity, purity, quantity | Endotoxin$200 | Sterility$230 PCR; USP <71> $250 | Heavy metals$200 |
| Axiom Analytics Sacramento, CA (registered address) | Identity and purity$195 purity, net content, LC-MS identity | Endotoxin+$50 | Sterility$175 USP <71> | Heavy metals+$50 |
| BioRegen Location not published | Identity and purity$165 net content +$65 | Endotoxin$195 | SterilityNot offered | Heavy metalsNot offered |
| Bioviridian College Station, TX | Identity and purity$150 net content +$25 | Endotoxin$150 | Sterility$200 USP <71> | Heavy metals$100 |
| Horizon Analytical Golden, CO (contact address) | Identity and purity$200 purity, identity, quantity | EndotoxinIn $850 panel | SterilityIn $850 panel outsourced | Heavy metals$175 |
| KMD Analytical Chatsworth, CA | Identity and purity$150 identity, purity, net content | Endotoxin$150 | SterilityNot offered | Heavy metalsNot offered |
| MDx BioAnalytical Laboratory College Station, TX | Identity and purity$225 identity, purity, net content | Endotoxin$150 | SterilityNot published | Heavy metalsQuote |
| Synthesyx Laboratories Las Vegas, NV | Identity and purity$200 GLP-1 class $275 | Endotoxin$150 | Sterility$175 based on USP <71> | Heavy metals$150 |
| ZyntroTest College Station, TX (mailbox) | Identity and purity$200 net content +$25 | Endotoxin$200 | Sterility$250 | Heavy metals$175 |
Cheapest peptide testing: what you give up
- Identity by retention time only. Many base tests confirm identity by matching an HPLC retention time to a standard. Mass spectrometry measures the molecule itself; at GSA it is in the base price.
- No net content. A purity percentage without milligrams per vial cannot be checked against the label.
- A screen instead of a sterility test. PCR and rapid screens look for microbial DNA or growth markers; USP <71> is a 14-day culture.
- Metals left out. Several labs do not publish an ICP-MS price at all.
- No way to verify the certificate. A report you cannot check with the issuing lab is easy to copy or edit.
Compare peptide testing labs in detail, or split one test with other buyers through group testing.
Packages and discounts
| Package | Includes | One peptide |
|---|---|---|
| Bronze | IncludesHPLC-MS purity and identity with the impurity breakdown, 10% off | One peptide$160.20 |
| Silver | IncludesBronze plus net content and endotoxin, 15% off | One peptide$337.45 |
| Gold | IncludesSilver plus the 3-day bioburden, 20% off | One peptide$396.80 |
| Platinum | IncludesEvery test on the list for the sample type, 25% off | One peptide$1,250.25 |
One flat price for every peptide or blend, GLP-1s included. Packages take 10% to 25% off the same tests bought one by one and apply automatically when your tests cover one. Volume discounts: 10% off at 10 samples, 15% at 25, 20% at 50. Standard turnaround is included; expedited adds 50% and priority 100%. Gold Standard members pay 5% less. The current intake shows the itemized quote before payment.
What moves the price
- One price for every peptide. GLP-1s, blends and large or modified peptides cost the same as any other peptide: $129 for identity and purity, $199 with net content.
- Destructive add-ons. Endotoxin, sterility, heavy metals, residual solvents and TFA each consume a vial. Endotoxin and sterility share one.
- Conformity. Eligible conformity testing adds $49 per additional vial of the same SKU and is the only way to say anything about the lot rather than one vial.
- Volume. 10% off at 10 samples in one order, 15% at 25 and 20% at 50, after any package; group testing lets 2–50 people split one sample’s fee.
- Packages. 10% off for Bronze up to 25% off for Platinum, taken off the same tests bought one by one and applied automatically when your tests cover a package.
- 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. How membership works.
Published prices at other laboratories
| Laboratory | Identity and purity, published | Source |
|---|---|---|
| Janoshik Analytical | Identity and purity, publishedMost single-peptide tests $215 or $290; GLP-1 blind test $360; specialty peptides $450 (2026 menu). | Sourcelabowned.com menu snapshot, Jul 2026 |
| Freedom Diagnostics | Identity and purity, published$200 purity and ID plus $25 net peptide content, $225 combined. GLP-1 class priced the same. | SourceIntake form v4, May 2026 |
| Vanguard Laboratory | Identity and purity, publishedHPLC purity $250, quantity $250, identity $200 as separate line items; tiered packages $249–$700. | Sourcevanguardlaboratory.com; peptidecritic.com, 2026 |
| MZ Biolabs | Identity and purity, publishedHPLC-UV purity with mass-spectrometry identity; community-documented pricing $175–$350 per test, 4-sample monthly minimum for commercial clients. | Sourcepeptigrity.com, 2025–2026 |
| Chromate | Identity and purity, publishedRP-HPLC purity as the default; community pricing $100–$180; no published fee schedule. | Sourcethepeptidelist.com, Jan 2026; goldstandardanalytics.com/compare/chromate, Aug 2026 |
| ACS Peptide Testing Labs | Identity and purity, publishedHPLC purity from $150–$300; identity plus purity $400–$600. Exact price by quote. | Sourceacslabtest.com/blog, Feb 2026 |
| Horizon Analytical | Identity and purity, publishedPurity, ID and quantity $275 per sample; blends $400–$650. | Sourcehorizonanalytical.com/services, checked Sep 2026 |
| ZyntroTest | Identity and purity, published$200 per sample for LC-MS purity with "molecular identity confirmation". Net content not listed. | Sourcezyntrotest.com, checked Sep 2026 |
| Prodigy Labs | Identity and purity, publishedScreening $195: RP-HPLC purity with retention-time identity, no mass spec. Tier 1 $295 adds co-injection identity and content. MS identity is a $350 add-on per active. | Sourceprodigy-labs.com/peptide-testing-pricing, checked Sep 2026 |
| TrustPointe Analytics | Identity and purity, publishedPer-peptide assays: $200 (BPC-157, TB-500, ipamorelin), $300 (semaglutide, tirzepatide), $400 (retatrutide, cagrilintide, NAD+). Identity, potency and purity by HPLC; mass spectrometry not stated. Additional same-lot vials $80–$100. | Sourcetrustpointeanalytics.com/collections/peptide-testing, checked Sep 2026 |
| Bioviridian | Identity and purity, published$150 per sample for LC-MS purity, identity and net peptide content on an Agilent 1200 HPLC-DAD with LC-MS and MALDI-MS. | Sourcebioviridians.com; peptigrity.com, 2026 |
Taken from each laboratory’s own site or a named public source, checked September 9, 2026. Full comparisons on the compare page.
What is included at every price
Every sample is opened on camera, photographed, blind-coded and tracked on one accession. The certificate is public by accession number, carries a SHA-256 hash and prints the chromatogram, method, instrument ID and specification for each result. Custody video is kept three years and the retained sample about 90 days, so a disputed result can be reviewed: we re-check the data, can rerun the retained material or send it to another laboratory, and correct the certificate publicly if we were wrong.
Questions
Is GLP-1 testing more expensive?
No. GLP-1s are the same price as every other peptide: $129 for HPLC-MS identity and purity, or $199 with net content. Semaglutide, tirzepatide and their analogs still get longer gradients, dedicated certified reference standards and the multiply charged identity work.
Is there a cheaper way to test one vial?
Group testing. Two to fifty people split one sample’s fee and every contributor gets the same signed certificate. The peptide base assay includes identity and purity; the current intake shows available add-ons.
Do you charge for the shipping label?
Yes, at the carrier’s rate with no markup: each order pays its inbound UPS or FedEx label, and the price is shown before you pay.
Are there hidden fees?
No. The quote in the intake builder is the invoice total. Sales tax applies where required by law and is shown before payment.
Can a vendor pay for a customer’s test?
Yes. Any account can pay for any accession, and the referral program pays 20% of a referred customer’s first order to the referrer.
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Submit a sample
An invoice is issued at submission and the prepaid label is emailed when payment lands.