Peptide Testing

Injectable-grade peptide testing, priced to move

Transparent per-sample pricing, true in-house USP <71> sterility, and free method development on established peptides. A US lab built for fast, honest answers.

True in-house USP <71> sterility LC-MS/MS identity US lab — San Diego QR-verifiable COA
Screening
Identity + Purity
$175/ sample
5–7 business days
The fast, low-cost check: is it the right peptide, and how pure? RP-HPLC purity with retention-time identity — no mass spec.
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Included
  • RP-HPLC purity
  • Retention-time / co-elution identity
  • Related-substance / impurity profile
  • Net peptide content
  • Digital COA in your portal

Need mass-spec confirmation? Upgrade to Identity & Purity (LC-MS/MS) — $249.

Tier 1
Identity & Purity — LC-MS/MS
$249/ sample
5–7 business days
Is it real, and is it pure? Adds mass-spec identity to the screening tier — the essentials for verifying an incoming peptide batch.
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Everything in Screening, plus
  • LC-MS/MS identity confirmation
  • Higher-confidence impurity profile
True USP <71>
Tier 3
Injectable Release
$1,195/ sample
~15 business days
Genuine release-grade testing with a full 14-day sterility test — performed in-house, not outsourced.
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Everything in Tier 2, plus
  • Sterility — true USP <71> (14-day, in-house)
  • Full net-content / CHNS confirmation
  • Release-grade COA
  • Priority processing

Add-ons available: true USP <71> sterility ($300) · heavy metals à la carte · BAC / reconstitution-water testing · rush turnaround. Method development is free for established (in-literature) peptides. Volume & batch pricing for vendors — ask us.

Compare the tiers

What's testedScreening
Identity + Purity
Tier 1
Identity & Purity
Tier 2
Injectable Screening
Tier 3
Injectable Release
RP-HPLC purity
Impurity / related substances
Retention-time / co-elution identity
LC-MS/MS identity
Net peptide content
Endotoxin — USP <85> (LAL)
Heavy metals — ICP-MS
Bioburden — USP <61>
Sterility — true USP <71> (14-day)
Turnaround5–7 days5–7 days7–10 days~15 days
Price / sample$175$249$750$1,195

Comparing quotes? Ask one question.

Does the panel include a true USP <71> sterility test (full 14-day incubation), or just a bioburden count (USP <61>)? That's usually the price difference. Our Screening tier ($750) covers identity, purity, net content, endotoxin, heavy metals, and bioburden; Release ($1,195) adds the true USP <71> sterility test. Many lower-priced "injectable" panels are screening/bioburden — not a true sterility test — so it's worth confirming when you compare.

Peptide testing FAQ

Is endotoxin enough to call a peptide "injectable grade"?

No. Endotoxin (USP <85>) only measures pyrogens. A true injectable claim also needs sterility (USP <71>) — which is why it's the defining test in Tier 3. Endotoxin pass/fail also depends on your intended max dose.

Do you run true USP <71> sterility in-house?

Yes — the full 14-day USP <71> sterility test is performed in our own lab, not outsourced or substituted with a bioburden count.

Do you charge method-development fees?

Not for established, in-literature peptides — we absorb that cost. A one-time fee applies only to genuinely novel or custom sequences.

Do you test semaglutide, tirzepatide, or retatrutide?

Yes, for analytical/research purposes, with a signed Tier-2 acknowledgment and an analytical-only disclaimer on the COA.

Do you accept samples from individuals?

Yes — individuals are welcome with a signed analytical-only attestation. We also serve vendors, clinics, and compounding pharmacies.

Are you ISO 17025 accredited?

Accreditation is in progress. Today our methods are validated to USP <1225> and run on qualified instruments, with true in-house compendial sterility and endotoxin testing.

Ready to test your peptides?

Submit a sample through your free portal, or email us for a quote and we'll turn it around fast.

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