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Puritide Research

Puritide Research

Research-grade purity. Verified on every lot.

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  • Third-party tested
  • ≥99% HPLC purity
  • COA with every order
  • Made in USA
Proof, not promises

Every vial is verifiable

  1. 01

    Independent lab testing

    Each lot is tested by a third-party lab: HPLC for purity, mass spectrometry for identity.

  2. 02

    A certificate for every lot

    The certificate of analysis for your exact lot ships with your order and is posted online.

  3. 03

    Verify it yourself

    Type the lot number from your vial below to see its purity, testing lab and test date.

Check a lot number

Certificate of analysis for lot G3R30-260613, GLP-3 (RT), purity 99.86% by UPLC
A real certificate, lot G3R30-260613. Verify this lot →
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Why researchers order here

  • Ships fast from the USA

    UPS delivery in 1 to 5 business days, with tracking on every order.

  • Free shipping over $200

    Standard shipping is free on any order over $200, applied automatically at checkout.

  • Save on multiple vials

    Buy 3, save 5%. Buy 6+, save 10%. Per product, applied automatically.

Research library

Know what you’re studying

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Quick answers

Before you order

What does high purity mean for research peptides?

It means the target peptide accounts for at least 99% of the peak area in an analytical HPLC run, with its identity confirmed by mass spectrometry. HPLC purity measures related impurities, not water or salt content. Every Puritide lot is tested by an independent lab, and the result is on the lot's certificate of analysis.

What are research-grade peptides?

Research-grade peptides are made and documented for laboratory work: purity and identity are verified by analytical testing and recorded on a batch certificate of analysis. They are sold for research use only, are not FDA-approved drugs, and are not sold as supplements or food.

How is each batch tested?

Every lot is tested by an independent lab using analytical HPLC for purity and mass spectrometry for identity. The certificate of analysis for your lot comes with your order, and you can look any lot up on our verify page.

How fast do orders ship?

Orders ship from the USA by UPS and arrive in 1 to 5 business days. Standard shipping is free on orders over $200.

Who are these products for?

Our compounds are sold for laboratory research use only. They are not for human or veterinary use, and they are not drugs, supplements, or food.

How do I pay?

Checkout takes major credit and debit cards through a secure payment page. Your card details never touch our store.

Welcome offer

15% off your first order

Leave your email for a one-time code. It applies automatically at checkout.

For laboratory research use only. One code per customer.