Frequently Asked Questions
Answers to the most common questions about research peptides, Lab of Peptides compounds, ordering, shipping, and storage. If your question is not answered here, contact research@labofpeptides.com
About Research Peptides
What are research peptides?
Research peptides are short chains of amino acids, typically fewer than 50 residues, synthesised for use in scientific laboratory investigation. They are distinct from dietary peptide supplements and pharmaceutical peptide drugs. Research peptides are supplied under research-use-only designations for in vitro and in vivo scientific study by qualified researchers and institutions.
What is a peptide and how does it differ from a protein?
A peptide is a chain of two or more amino acids linked by peptide bonds. Proteins are also amino acid chains but typically contain more than 50 residues and adopt complex three-dimensional structures. Research peptides are smaller, more precisely defined compounds used to investigate specific receptor interactions, signalling pathways, and biological mechanisms.
Are research peptides the same as collagen peptides or protein supplements?
No. Collagen peptides are dietary supplements and food products sold for nutritional purposes. Research peptides are laboratory compounds used for scientific investigation of specific biological pathways. They serve entirely different purposes, are supplied under different standards, and are not interchangeable.
Are peptides legal?
Research-grade peptides are legal to purchase and possess in the United States for scientific research purposes. They are not approved by the FDA for human use. Regulatory status varies by jurisdiction, and customers outside the United States are responsible for verifying compliance with local research and import regulations before ordering.
Are research peptides steroids?
No. Peptides and steroids are chemically unrelated. Steroids are lipid-derived compounds built from cholesterol structures. Peptides are chains of amino acids. They act through different receptors, different synthesis pathways, and different biological systems.
What is peptide therapy?
Peptide therapy is a clinical term used by licensed healthcare providers when certain peptide compounds are investigated or prescribed within a medical setting. Lab of Peptides does not sell therapeutic products and does not provide medical advice. Our catalogue is supplied for research use only.
About Lab of Peptides
Who is Lab of Peptides?
Lab of Peptides is a US-based research peptide supplier led by Dr. Elsa S. Shelton MD, a board-certified endocrinologist and Research Director with more than 15 years of experience in hormonal and metabolic research. We supply research-grade compounds to scientists, institutions, and qualified research professionals for scientific investigation only.
Are Lab of Peptides compounds third-party tested?
Yes. Every compound in our catalogue is verified by independent third-party analytical laboratories. Certificate of Analysis documentation confirming 99%+ purity via HPLC analysis is available upon request for each product batch.
What does 99%+ purity via HPLC mean?
HPLC, or High-Performance Liquid Chromatography, is a standard analytical method used to measure compound purity. A result of 99%+ means at least 99% of the measured material corresponds to the target compound, with the remainder representing trace impurities or related synthesis byproducts. This standard is important for reproducible research.
Who are these products intended for?
Lab of Peptides products are intended for qualified researchers, scientists, academic institutions, biotechnology teams, and research professionals conducting scientific investigation in controlled laboratory environments. They are not intended for personal use, self-experimentation, or human consumption.
Do you provide COAs on request?
Yes. Researchers can request batch-specific COA documentation by contacting research@labofpeptides.com with the product name and order details. This supports internal documentation review, methods preparation, and procurement oversight.
Ordering and Payment
How do I place an order?
Browse the catalogue, select your compound and variation, add it to the cart, and proceed to checkout. Guest checkout is available. Orders are reviewed and processed through the standard WooCommerce checkout flow.
What payment methods are accepted?
We accept major credit cards and debit cards through secure checkout. Payment handling is managed by our payment provider, and full card details are not stored on our servers.
Can research institutions place bulk or wholesale orders?
Yes. Institutional and bulk procurement inquiries can be submitted through the contact workflow. Many injectable catalogue items now include 25-vial Bulk Research Supply variations, and custom volume arrangements may be available for qualifying research programs.
Do I need an account to buy?
No. Guest checkout is available. Creating an account can make repeat ordering and order-history review easier, but it is not required to complete a purchase.
Storage and Handling
How should lyophilized peptide powders be stored?
Lyophilized peptide powders should generally be stored at -20°C and protected from light and moisture. Under those conditions, many peptides remain stable for extended periods. Reconstituted solutions should generally be stored at 2 to 8°C and used within the handling window established by the research protocol.
What is lyophilized powder?
Lyophilization is a freeze-drying process that removes water while preserving molecular structure. The result is a stable dry powder format suitable for long-term storage and later reconstitution in laboratory settings.
What is bacteriostatic water and why is it needed?
Bacteriostatic water is sterile water containing 0.9% benzyl alcohol to inhibit bacterial growth. It is commonly used to reconstitute lyophilized peptides into solution for research use. Lab of Peptides supplies bacteriostatic water as an accessory product for laboratory use only.
How do researchers calculate concentration after reconstitution?
A common formula is: peptide amount in micrograms divided by desired concentration in micrograms per millilitre equals the volume of bacteriostatic water to add in millilitres. Researchers should confirm all calculations against their protocol, assay design, and lab standards.
How long do reconstituted peptides remain stable?
Stability varies by compound, solvent, storage temperature, and handling practices. Many protocols use refrigerated reconstituted solutions within 30 days, but researchers should evaluate each compound individually and follow the stability assumptions appropriate to their work.
Shipping and Delivery
Do you ship internationally?
Yes. Lab of Peptides ships to most international destinations. International customers are responsible for import duties, customs fees, local taxes, and legal compliance in the destination country.
How long does shipping take?
US domestic shipping generally takes 3 to 5 business days for standard service, 2 business days for expedited service, and 1 business day for overnight service. International transit usually ranges from 7 to 21 business days depending on destination and customs processing.
Is there free shipping?
Yes. Free standard US shipping is available on orders over $150.
How will I know my order shipped?
You will receive a dispatch email with tracking details once the order has been packed and handed to the carrier.
What if my order is delayed or lost?
If an order has not arrived within 30 days of dispatch, contact research@labofpeptides.com so we can review the shipment status with the carrier and determine whether a replacement or refund review is appropriate.
Research-Specific Questions
What is a peptide reconstitution calculator?
A peptide reconstitution calculator helps researchers determine how much bacteriostatic water to add to a lyophilized peptide vial to achieve a target concentration for laboratory use. It is a convenience tool for planning concentrations and should always be cross-checked manually.
What is a Certificate of Analysis (COA)?
A COA is a document from an analytical laboratory confirming the identity, purity, and quality metrics for a specific batch. At Lab of Peptides, COAs are used to support 99%+ purity documentation and reproducibility planning.
Why do researchers compare multiple peptides in the same protocol?
Comparative peptide protocols allow investigators to separate mechanisms, benchmark pathway responses, and identify whether observed changes are specific to one compound class or shared across several peptide tools. This is common in metabolic, regenerative, cognitive, and immune research.
Are product pages written as medical guidance?
No. Product pages summarize research context and procurement information. They are not medical guidance, not prescribing information, and not intended to support human use.
Can I ask for help choosing a compound for my study?
You may contact us with catalogue and documentation questions, but study design decisions should be made by qualified investigators, principal researchers, or institutional review teams. Lab of Peptides does not provide clinical advice.
Do you offer protocol kits?
Yes. The Research Protocol Kits category includes multi-compound bundles such as BPC-157 plus TB-500, Tirzepatide plus AOD-9604, and other structured combinations intended to simplify laboratory procurement.
Are these products for human consumption?
No. All products sold by Lab of Peptides are supplied for in vitro and in vivo scientific investigation only. They are not intended for human consumption, self-administration, or therapeutic use.
Do you provide stable supply for recurring research programs?
The catalogue is structured to support ongoing laboratory procurement, including bulk supply options on many injectable products. Availability may still vary by batch and demand, so recurring programs should plan procurement timelines accordingly.