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Lab Test Planner
Which test answers your question?
As of 23 September 2026, the planner holds 70 tests from 5 independent analytical laboratories, each read from the laboratory's own website with its published US dollar price, turnaround and sample requirements. Choose a compound and a question to see the matching tests. Nothing you enter here is sent anywhere.
Primara Labs sells some of the compounds covered here. Every figure on this page links to its source and the date it was checked.
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Identity: what the report will and will not tell you
An identity test checks that the substance is the compound named. Mass spectrometry measures the molecule's mass directly; an HPLC identity check compares how long the sample takes to pass through a column against a reference standard, which is weaker evidence on its own.
Janoshik Analytical
Accepts samples from anywhere in the world, per its own site. Its only test labelled blind is the common GLP-1 blind test. Blend analyses measure identity and amount but not purity.
Blind testing: With blind testing, you do not need to tell us which of the three peptides you suspect to be in your vial. The test will identify the peptide, all the while accurately measuring it’s amount in the vial and peptide purity.
Most popular test of GLP-1 peptides – blind test of semaglutide, tirzepatide, and retatrutide. Providing you with ID, amount and peptide purity of your sample. With blind testing, you do not need to tell us which of the three peptides you suspect to be in your vial. The test will identify the peptide, all the while accurately measuring it’s amount in the vial and peptide purity. In case of a mixture of the three, ID and amount of all will be analyzed. | Testing method: HPLC | Detection limit cutoff: less than 1/20th of the usual dosage per vial | Result format (lyophilizate): mg per vial and peptide purity | Result format (alternative): m/m purity and peptide purity
Does not cover: Important notice: In case the peptides are mixed together in the sample, measurement of peptide purity might not be possible.
Average turnaround time: 7 business days · Minimum amount for the test (lyophilizate): 1 whole unopened vial with lyophilizate; Minimum amount for the test (raw API powder): 30mg in sealed glass vial to prevent the sample from absorbing moisture
LCMS testing can detect contamination of peptide products with other peptides and degraded peptide. Detection is limited to peptides on our price list. You can ask our customer support for the full list, Test gives only identification. Measurement of concentration can be offered for an additional price once contamination is detected.
Does not cover: Detection is limited to peptides on our price list. You can ask our customer support for the full list, Test gives only identification. Measurement of concentration can be offered for an additional price once contamination is detected.
Turnaround not published · GCMS and LCMS - no additional piece of sample is necessary
Standalone GCMS or LCMS screening for contamination of the sample. The type of analysis depends o the type of sample. Our lab team will determine which method is best for your sample. LCMS testing can detect contamination of peptide products with other peptides and degraded peptide. | Testing method: GCMS or LCMS
Does not cover: Detection is limited to volatile and semi-volatile compounds and the test cannot be used on peptide samples. Detection is limited to peptides on our price list (you can ask our customer support for the full list). Both tests give only identification of contaminants. Measurement of concentration can be offered for additional price once such substance is detected.
Average turnaround time: 7 business days · Amount of sample required: 1 tab/caps or 1 ml solution or 200 mg raw or 1 vial
Accumark Labs
States US sample intake. Identity is by HPLC; LC-MS identity is listed as in development. No sample quantity is stated.
HPLC Identity Confirmation | Purity Analysis (%) | Quantity Verification (mg) | Digital + PDF Certificate | Cryptographically Immutable
Standard results typically in 2 business days from sample receipt. | Typical turnaround time for standard analytical services is 48–72 hours after sample acceptance.
Everything in Core Panel | Endotoxin (LAL) Testing | Sterility (PCR) Testing | Satisfaction Guaranteed
Turnaround not published
ACS Peptide Testing Labs (ACS Laboratory)
Publishes price ranges only; the final price is by quote. Its FAQ page gives different figures from its cost page. States US intake, with customs guidance for international shipments.
- Identity confirmationUS$200 to 400, by quote
Monoisotopic mass and sequence confirmation. Most COAs pair this with HPLC purity. | Method: LC-MS/MS Orbitrap
Turnaround is 9 to 11 business days at one price for every customer. · Sample needed: 0.5–1 mg lyophilized peptide (molecular-analysis page)
- Third-party COA verificationUS$300 to 600, by quote
Independent re-test of a supplier COA, with a side-by-side discrepancy summary. | Method: HPLC + LC-MS against supplied COA
Turnaround is 9 to 11 business days at one price for every customer.
- Purity + Identity (bundle)US$350 to 650, by quote
The laboratory's default panel: HPLC purity plus LC-MS identity.
Turnaround is 9 to 11 business days at one price for every customer.
- Compounding release panel (bundle)US$800 to 1600, by quote
Purity, identity, endotoxin, and moisture.
Turnaround is 9 to 11 business days at one price for every customer.
- Full contaminant screen (bundle)US$1000 to 2000, by quote
Everything in the release panel plus ICP-MS heavy metals and GC-HS residual solvents.
Turnaround is 9 to 11 business days at one price for every customer. · Comprehensive Contaminant Panel (endotoxin, heavy metals, residual solvents): Sample required: 5–10 mg (endotoxin-testing page)
ILS Laboratories
States US sample intake. Identity is by HPLC retention time; LC-MS identity is an unpriced add-on. Only the two panels are priced.
- Full QC PanelUS$600
Purity & Quantitation (HPLC) | Identity Confirmation (HPLC Retention Time Matching) | Endotoxin (USP <85>) | Heavy Metals (ICP-MS) | Rapid Sterility Screen (DNA Microarray)
~1 week. Rush: 3 business days from lab receipt; receipt date is Day 0 · Minimum 10 mg per sample. The Full QC Panel requires a minimum of 10 mg of material to complete all five tests across the different test groups. 3 vials recommended per sample. Under 10 mg? Send 4 vials. Lyophilized (freeze-dried) powder is the preferred sample form. Reconstituted solutions are also accepted.
- HPLC PanelUS$200
A focused panel for HPLC identity, purity, and quantitation. | HPLC retention-time identity | Purity assessment | Quantitation
~1 week
- Identity Confirmation (a la carte)Price not published
HPLC-based identity confirmation by retention time matching against reference standards. Results confirm the sample matches the expected compound. | HPLC Retention Time Matching (RTM)
~1 week
- LC-MS Identity (Custom Add-On)Price not published
Listed under A La Carte Testing as an additional add-on analysis.
~1 week
Vanguard Laboratory
Its price page does not state how purity or identity are measured. The same site runs a programme that promotes peptide suppliers, which bears on its independence.
- Level 1 SilverUS$250
Silver includes purity, quantity, identity and solubility. | 4 checks · 1 vial per sample
Turnaround depends on the selected tests and is confirmed by the laboratory. · 1 vial per sample
- Level 2 GoldUS$550
Gold adds endotoxins, bioburden, fentanyl screening and vial seal integrity. | Purity, Quantity, Identity, Solubility, Endotoxins, Bioburden (USP 61), Fentanyl Screening, Vial Seal Integrity | 8 checks · 3 vials per sample
Does not cover: Bioburden is not sterility.
Turnaround depends on the selected tests and is confirmed by the laboratory. · 3 vials per sample
- Level 3 EliteUS$700
Elite also adds heavy metals. | All eight Gold checks | Heavy Metals Screening | 9 checks · 4 vials per sample
Does not cover: Sterility and conformity are optional
Turnaround depends on the selected tests and is confirmed by the laboratory. · 4 vials per sample
Blind testing
Why a blind test is stronger
In a blind test the laboratory is not told which compound to expect and has to identify it. That is stronger than a test that confirms a compound named in advance, because a named-target test can only say whether the expected compound is present.
Guarantee
If a test disagrees with the label
60-day money-back guarantee: if an accredited independent laboratory reports that a vial is not the compound on the label, or reports purity below the certificate published for that product, the purchase price is refunded. How the guarantee works.
Method
Where the prices come from
Methodology
Every test, price and turnaround was read from the laboratory's own pages on 23 September 2026; each row links to the page it came from. A price the laboratory publishes only as a range is shown as a range; one it does not publish is shown as not published. Prices change: check the laboratory's page before ordering.
The planner names laboratories, not sellers, and does not rank them.
Cite this
Primara Labs Research Desk, "Peptide laboratory tests and prices", last updated 23 September 2026, https://www.primaralabs.com/tools/lab-test-planner