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BPC-157

TB-500

Semaglutide

Tirzepatide

Ipamorelin

CJC-1295

BPC-157

TB-500

Semaglutide

Tirzepatide

Ipamorelin

CJC-1295

BPC-157

TB-500

Semaglutide

Tirzepatide

Ipamorelin

CJC-1295

BPC-157

TB-500

Semaglutide

Tirzepatide

Ipamorelin

CJC-1295

BPC-157

TB-500

Semaglutide

Tirzepatide

Ipamorelin

CJC-1295

BPC-157

TB-500

Semaglutide

Tirzepatide

Ipamorelin

CJC-1295

View all

Why Researchers Choose PeptidesNow

Not all peptide suppliers are equal. PeptidesNow holds every batch to strict third-party verification standards — not just internal QC. Compare what we offer against typical suppliers in the market.

Explore Our Peptide Catalog
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Purity ≥ 98% Guaranteed

Certificate of Analysis (COA)

Third-Party HPLC Verification

Inconsistent Purity

Sequence Accuracy Verified

Free Tracked Shipping

The PeptidesNow Standard

  • Purity You Can Verify

    Every peptide compound ships with an independent Certificate of Analysis showing HPLC purity ≥ 98% and confirmed sequence. No guesswork, no trust-me claims.

  • GMP-Compliant Synthesis

    Our peptides are synthesized in certified facilities following Good Manufacturing Practice protocols — the same standard used in pharmaceutical research environments.

  • Cold-Chain Packaging

    Lyophilized peptides are sealed and shipped with temperature-controlled packaging to preserve structural integrity from our facility to your lab.

  • Research-Ready Stock

    A wide catalog of in-stock peptides available for immediate dispatch — no lead times, no minimum order quantities on most compounds.

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Built for Serious Research

PeptidesNow was founded on a single commitment: supply the research community with peptides that meet the documentation and purity standards that serious science demands. Every compound we ship is independently verified — not just claimed.

Browse the Full Catalog

Purity ≥ 98%

Third-Party Tested

COA on Every Order

Lyophilized & Sealed

GMP-Compliant Synthesis

Fast, Discreet Shipping

Purity ≥ 98%

Third-Party Tested

COA on Every Order

Lyophilized & Sealed

GMP-Compliant Synthesis

Fast, Discreet Shipping

Purity ≥ 98%

Third-Party Tested

COA on Every Order

Lyophilized & Sealed

GMP-Compliant Synthesis

Fast, Discreet Shipping

Purity ≥ 98%

Third-Party Tested

COA on Every Order

Lyophilized & Sealed

GMP-Compliant Synthesis

Fast, Discreet Shipping

100% Authentic

Lab-Verified Purity

Trusted by Researchers

100% Authentic

Lab-Verified Purity

Trusted by Researchers

100% Authentic

Lab-Verified Purity

Trusted by Researchers

100% Authentic

Lab-Verified Purity

Trusted by Researchers

100% Authentic

Lab-Verified Purity

Trusted by Researchers

100% Authentic

Lab-Verified Purity

Trusted by Researchers

100% Authentic

Lab-Verified Purity

Trusted by Researchers

100% Authentic

Lab-Verified Purity

Trusted by Researchers

100% Authentic

Lab-Verified Purity

Trusted by Researchers

100% Authentic

Lab-Verified Purity

Trusted by Researchers

100% Authentic

Lab-Verified Purity

Trusted by Researchers

100% Authentic

Lab-Verified Purity

Trusted by Researchers

What Researchers Are Saying

  • ★★★★★

    Finally, a Supplier I Can Trust

    I've sourced BPC-157 from multiple vendors over the years. PeptidesNow is the first one where the COA actually matched the purity I measured in-house. Reordering without hesitation.

    Dr. K. Wallace, Research Biochemist

  • ★★★★★

    Fast Shipping, Zero Degradation

    Our lab is in a warm climate and I was worried about peptide stability. The cold-chain packaging was solid — product arrived intact and within spec. Will be making this our go-to source for TB-500.

    M. Okonkwo, Molecular Biology Lab Mgr

  • ★★★★★

    No Minimum Orders — A Game Changer

    Running a small independent research project means I can't always commit to bulk quantities. PeptidesNow lets me order single vials of Ipamorelin without being penalized. Exactly what smaller labs need.

    T. Harrington, PhD Candidate

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Have a Research Inquiry?

Sourced Rigorously. Shipped Responsibly.

PeptidesNow was built by researchers who were frustrated with inconsistent purity data and vague sourcing claims. Every compound in our catalog is selected for its synthesis quality and independently analyzed before we approve it for supply. We maintain full chain-of-custody documentation so you know exactly what you’re working with — from synthesis to delivery.

Our Quality Standards

Frequently Asked Research Questions

What purity levels do your peptides reach?

All peptides listed in our catalog are independently verified to a minimum purity of 98% by HPLC analysis. Many compounds in our catalog test at 99%+ purity. The specific purity result for your batch is documented in the Certificate of Analysis (COA) that ships with every order — not an average or estimate, but your actual batch result.

Do you provide a Certificate of Analysis for every order?

Yes — We can provide batch-specific COA documentation covering HPLC purity, mass spectrometry confirmation, and amino acid sequence verification. You can also request your COA independently via email once your order number is confirmed. We do not issue generic or averaged COAs.

How should I store peptides after they arrive?

Lyophilized (freeze-dried) peptides should be stored at -20°C in a dry, dark environment. Once reconstituted, store at 4°C and use within 28–30 days for best results. All our compounds ship in sealed, sterile vials with desiccant to minimize moisture exposure during transit. Avoid repeated freeze-thaw cycles after reconstitution.

Are these peptides for human use?

No. All peptides sold by PeptidesNow are strictly for laboratory and in vitro research purposes only. They are not intended for human or animal administration, diagnostic use, or therapeutic application. By purchasing from PeptidesNow, you confirm that compounds will be used solely in a licensed research environment in compliance with applicable regulations.