What are peptides?

Peptides are short chains of amino acids — the same building blocks that make up proteins. They occur naturally in the body and play roles in a wide range of biological processes, from cell signaling to tissue repair to hormone regulation. The peptides in our catalog are synthetic versions of these naturally occurring compounds, developed specifically for laboratory and research use.

What is the difference between a peptide and a protein?

Size and structure. Proteins are large, complex molecules made up of hundreds or thousands of amino acids folded into specific 3D shapes. Peptides are smaller — typically fewer than 50 amino acids — and are generally more stable, more targeted in their activity, and easier to synthesize for research purposes.

Are these peptides naturally occurring?

Most of the compounds in our catalog are synthetic analogues of naturally occurring peptides found in the human body. Some are modified to improve stability or extend half-life compared to their natural counterparts. All are produced through chemical synthesis for research applications.

What does "for research use only" mean?

All products sold by Pulse Bio Labs are intended strictly for laboratory and in vitro research purposes. They are not approved by the FDA for human consumption, medical treatment, or personal use. By purchasing from our store, you confirm that you are a qualified researcher and that products will be used solely for lawful scientific research.

Can I use these products on myself or others?

No. Our products are not intended for human or animal consumption under any circumstances. They are sold exclusively for in vitro and laboratory research. Pulse Bio Labs assumes no liability for any misuse of its products outside of their intended research context.

Are your products legal to purchase?

Research peptides exist in a complex regulatory landscape that varies by country and jurisdiction. It is the sole responsibility of the buyer to understand and comply with all applicable local, state, and federal laws before purchasing. Pulse Bio Labs sells only to customers who confirm they are purchasing for legitimate research purposes.

How are your peptides manufactured?

Our peptides are produced using solid-phase peptide synthesis (SPPS), the industry-standard method for producing research-grade compounds. We source from manufacturers who apply rigorous quality control processes throughout production.

What purity level can I expect?

We source products with a target purity of 98%+ as verified by analytical testing methods including HPLC. Purity specifications are included where available. If you have specific purity requirements for your research, feel free to contact us before ordering.

How should I store these compounds?

Lyophilized (freeze-dried) peptides should be stored in a cool, dry environment away from direct light and moisture. Refrigeration at 2–8°C is suitable for short-term storage. For long-term preservation, storage at -20°C is generally recommended. Once reconstituted, peptides should be used promptly or stored refrigerated and used within a short timeframe. Always consult current literature for compound-specific handling guidelines.

Where do you ship?

We currently ship within the United States. International shipping availability may vary — contact us if you have questions about your location.

How long does shipping take?

Orders are typically processed within 1–2 business days. Delivery times vary based on your location and the shipping method selected at checkout. You will receive a tracking number once your order has shipped.

What is your return policy?

Due to the nature of research compounds, we are unable to accept returns on opened products. If there is an issue with your order — such as a damaged shipment or an error on our end — please contact us within 7 days of delivery and we will work to make it right.

How can I contact you?

You can reach us through our contact page. We aim to respond to all inquiries within 1–2 business days.