Free shipping on orders over $200  Shop Now   •   For Research and Laboratory Use Only

RESEARCH-GRADE PEPTIDES

99.9% purity.
Verified before you ask.

Third-party COA on every batch, published before checkout.

Product finder

Not sure which compound fits your research?

Three short questions, route you to the right catalog view, whether you’re an individual researcher, a lab tech, or sourcing on behalf of a facility.

Featured

Verification pathway

How a batch earns its certificate

Four checkpoints, synthesis to dispatch. Every batch clears all four before its COA goes live and the batch goes up for sale.

99% Verified purity

99.9% verified purity, third-party HPLC tested, published as a certificate of analysis.

Full traceability

Every batch traceable from synthesis to dispatch, four checkpoints documented.

BATCH SPECIFIC COAs

Each batch is lab-tested for purity, verified for identity, and screened for contaminants.

MADE IN USA

Manufactured in a cGMP facility in Texas with quality-verified standards for dependable research sourcing.

Before You Pick a Peptide Supplier

Compare what actually matters: lab location, COA availability, pricing transparency, response time, and philosophy.

What to look for Industry Standard What to avoid?
Purity Testing Method

Purity Testing MethodHigh-performance liquid chromatography run on every batch, not a sample subset.

“Lab Tested” Method is rarely named or documented. The claim stands on its own.

UnverifiableNo method disclosed, or testing skipped between production and sale.

Identity Confirmation

LC-MS ConfirmedMass spectrometry verifies molecular weight and sequence identity, not just purity.

Assumed Purity is claimed without confirming it’s actually the right compound.

No Confirmation Product could be mislabeled, substituted, or the wrong sequence entirely.

Contaminant Screening

Full Panel, Every BatchScreened for endotoxins and heavy metals on every release, no exceptions.

Partial or On Request Screening is inconsistent from batch to batch.
Not ScreenedContaminant risk is unknown and unaddressed.
COA Specificity
Batch-Specific COAEvery vial ships with results tied to its own batch number, not a generic sheet.
Provided Upon RequestOften a template, not matched to the batch you actually received.
No COA Or a “sample” certificate that isn’t actually tied to your product.

Brand Philosophy

Proof Over PromisesWe publish what we test and how, batch by batch, not just a purity number.

TransactionalPeptides sold as commodities; testing treated as an afterthought.

Hype-drivenUrgency marketing standing in for evidence.

Trusted by researchers

What researchers and labs say about sourcing with us

NEXT DAY DISPATCH

Shipped Priority Fast

ABOUT US

Why We Started Helix Sequence Labs

Most Asked Questions

How should I store Peptides?

Peptides in lyophilized powder form (unreconstituted) should be stored at freezer temperatures of 17°F (-8°C) to -4°F (-20°C) for long term storage of 1-2+ years for minimal degradation. Reconstituted peptides should be refrigerated at 36°- 42°F.

Does shipping time affect research Peptide Quality?

Our peptides are in lyophilized (freeze-dried) vials. Lyophilization is a process that significantly increases the stability and shelf life of compounds. Short term temperature variations during transit times will not affect the integrity of the peptide and should still keep purity at 99%.

What is your shipping time and options?

Orders ship the same day if placed before 1PM EST or the next day if placed after. Orders over $200 qualify for free Fedex 2-Day shipping. We also offer an insulated shipping option with a styrofoam lining and a large ice pack. Other couriers are available upon request (USPS or UPS).

How do you ensure the quality and purity of your research peptides?

We maintain the highest standards for quality and purity by manufacturing our research peptides in a GMP facility, ensuring strict adherence to Good Manufacturing Practices (GMP). Each batch undergoes rigorous Quality Control (QC) testing to verify purity, potency, and safety. We partner with trusted analytical testing laboratories to assess:

  • Purity levels to confirm high-grade peptide composition
  • Net peptide content per vial for accuracy
  • Endotoxin (lipopolysaccharide) presence to ensure safety
  • Sterility testing for bacterial and yeast contamination

Our commitment to precision and safety guarantees that every peptide meets stringent quality standards, delivering reliable and effective results.

How do your peptides support various research applications?

We maintain the highest standards for quality and purity by manufacturing our research peptides in a GMP facility, ensuring strict adherence to Good Manufacturing Practices (GMP). Each batch undergoes rigorous Quality Control (QC) testing to verify purity, potency, and safety. We partner with trusted analytical testing laboratories to assess:

  • Purity levels to confirm high-grade peptide composition
  • Net peptide content per vial for accuracy
  • Endotoxin (lipopolysaccharide) presence to ensure safety
  • Sterility testing for bacterial and yeast contamination

Our commitment to precision and safety guarantees that every peptide meets stringent quality standards, delivering reliable and effective results.

What is your pricing model like?

We offer some of the most competitive pricing on the market with rates up to 30% lower than the industry average. Our tiered pricing ranges from an additional 5% to 25% off and more for wholesale.

Most Asked Questions

What are Peptides

Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry’s standard dummy text ever since 1966, when designers at Letraset and James Mosley, the librarian at St Bride Printing Library in London, took a 1914 Cicero translation and scrambled it to make dummy text for Letraset’s Body Type sheets.

How fast do you ship?

Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry’s standard dummy text ever since 1966, when designers at Letraset and James Mosley, the librarian at St Bride Printing Library in London, took a 1914 Cicero translation and scrambled it to make dummy text for Letraset’s Body Type sheets.

How are your peptides synthesized?

Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry’s standard dummy text ever since 1966, when designers at Letraset and James Mosley, the librarian at St Bride Printing Library in London, took a 1914 Cicero translation and scrambled it to make dummy text for Letraset’s Body Type sheets.

Research Products Only

Our peptides are for laboratory research purposes only.

Research Tools Needed

Research tools may be required.
By entering, you confirm you’re 21+, understand these terms, and are purchasing for research use only.