Pricing, turnaround, methods, and — most importantly — how each lab's certificates verify. We're one of the labs on this page, every competitor fact is sourced from that lab's own website with the check date shown, and each comparison says plainly where the other lab is the better fit.
| LAB | LOCATION | PEPTIDE PRICING | TURNAROUND | VERIFICATION |
|---|---|---|---|---|
| Gold Standard Analytics (this lab) | Houston, TX | $189 base · $289 GLP-1 (published) | 5–7 days · 48–72h rush | Public QR registry, no login |
| Finnrick | US program (partner labs) | Free crowdsourced program; no fee schedule published | Not published | Public database + vendor ratings |
| Freedom Diagnostics | Franklin, TN | Not published on homepage | 2–4 days (claimed average) | 42,000+ public COAs, searchable |
| Janoshik Analytical | Czech Republic (worldwide intake) | GLP-1 blind $360 · HGH $500 (published) | “Fast”; days not published | QR-verified private reports |
| Vanguard Laboratory | Olympia, WA | $200–$250 base tiers (published) | 5–8 days | Emailed COAs; optional portal |
| Peptide Test | Michigan (partner lab) | Via order pages | Not published | verify.peptidetest.net |
| Kovera Labs | Illinois | Via their pricing page | Not published | QR + access-code COA pages |
| ILS Laboratories | San Diego, CA | Quote-based | ~1 week | LIMS-delivered results |
| MZ Biolabs | Tucson, AZ (DEA-licensed) | Not published | Not published | No public registry described |
| Chromate | USA | 'Affordable'; no schedule published | Not published | Verify portal (COA no. + code) |
Across US labs with published pricing (checked August 18, 2026): a purity-focused peptide test runs roughly $189–$250, GLP-1 class panels $289–$360, endotoxin around $199–$210, and sterility $150–$195. Gold Standard Analytics publishes every price: $189 for a base COA that bundles LC-MS identity, HPLC purity, and net peptide content; $289 for GLP-1s. Some programs (Finnrick) offer free crowdsourced testing for eligible US consumer submissions.
Pick a lab, submit an order describing the sample and the assays you want (identity, purity, net content — plus endotoxin and sterility for anything injectable), ship the vial with the label or instructions the lab provides, and receive a certificate of analysis. With Gold Standard Analytics the whole flow is online: build the submission at /sample-intake, pay, ship 5 mg of lyophilized peptide with the prepaid UPS label, and get a public QR-verifiable COA in 5–7 business days.
“Legit” is measurable: does the lab publish its methods and pricing, does it run both identity (LC-MS) and purity (HPLC), and can anyone verify its certificates through the lab's own public system? Several labs compared here meet parts of that bar — Freedom Diagnostics and Finnrick publish large public result databases, Janoshik reports verify by QR, Vanguard publishes pricing. Gold Standard Analytics meets all of it: published methods and pricing, dual-method certificates with net peptide content, and a public no-login registry where every COA resolves by accession number.
Match the lab to the job. Gating a shipment on a fast purity check favors speed (Freedom Diagnostics claims 2–4 days). Verifying a vendor's overall track record favors crowdsourced ratings (Finnrick). Selling to customers who will check your COAs favors public verifiability and safety panels — that's the job we built Gold Standard Analytics for: $189 dual-method certificates with net content, USP safety add-ons, and a public registry.