Frequently Asked
Questions
Products are provided for research purposes only and are not for human consumption.
Browse answers to common questions.
General Information
What are Peptides?
Peptides are short chains of amino acids used as precise molecular tools in scientific research. They support the study of biological pathways, protein modeling, and assay development.
Are your Peptides tested for purity?
Yes. All OptimalPep peptides are independently third-party tested to verify analytical purity and batch consistency. Batch-specific Certificates of Analysis (COAs) are provided to support transparency and documentation.
How fast do you ship?
Orders are typically shipped within one business day following processing. Delivery times vary by carrier and destination, with tracking information provided once the order is dispatched.
How should I store OptimalPep peptides upon arrival ?
Store lyophilized peptide at −20 °C (or 2–8 °C short-term). Reconstituted solution should be refrigerated at 2–8 °C, protected from light.
Do you provide Certificates of Analysis (COAs)?
Yes. When available, products include supporting documentation such as Certificates of Analysis (COAs) outlining purity, composition, and quality control results.
Ordering & Payments
What payment methods do you accept?
Payment is accepted via major credit and debit cards. Other available methods will be presented at checkout.
Can I change or cancel my order?
Orders are final once submitted and cannot be modified or canceled. Customers are responsible for verifying all order and shipping details prior to purchase.
Do you offer bulk pricing?
Volume-based pricing may be offered on certain products. Please reach out to our support team to inquire.
Shipping & Order Returns
How can I track my order?
Once your order ships, you’ll receive an email with tracking information and updates as it moves through transit.
Is international shipping available?
U.S. shipping only at this time.
How fast do you ship?
Orders are typically shipped within one business day following processing. Delivery times vary by carrier and destination, with tracking information provided once the order is dispatched.
What shipping carriers do you use?
FedEx 2-Day is used for street addresses, while USPS Priority Mail is used for P.O. Boxes. Carrier selection is automatic based on the shipping address entered at checkout.
What if my product arrives damaged?
If your order arrives damaged, please contact our support team promptly with your order number and clear photos of the product and packaging so we can assist.
What is your return policy?
All sales are final. Due to the nature of research products, we do not accept returns or offer refunds.
Storage & Handling
How should I store my peptides?
Store peptides in a cool, dry, and dark environment. Lyophilized peptides are commonly stored at −20 °C. Refer to product-specific storage guidance when available.
What solvents should I use to dissolve peptides?
Solvent selection varies by peptide. Commonly used solvents in research settings include sterile water, dilute acetic acid, or DMSO. Always consult relevant research and follow appropriate laboratory safety procedures when handling solvents.
How long do peptides remain stable?
Lyophilized peptides are often stable for months to years when stored at −20 °C in dry conditions. Stability after reconstitution depends on the peptide and handling, and repeated freeze–thaw cycles are generally minimized.
Can peptides degrade over time?
Yes. Peptides may degrade due to moisture, heat, light, oxidation, or repeated freeze–thaw cycles. Proper storage and careful handling help reduce degradation.
Technical & Compliance
Are your peptides laboratory tested?
Yes. Every peptide is tested using multiple laboratory methods to confirm purity and content and to screen for endotoxins, heavy metals, and sterility.
Is a license required to purchase peptides?
A license is not typically required to purchase; however, buyers are responsible for confirming that all products are used strictly for research purposes.
Are your peptides legally available for purchase?
Products are offered strictly for research use only. Buyers are responsible for ensuring compliance with all applicable local, state, and federal laws and regulations.
Other Questions
Do you have an affiliate program?
Yes! Reach out to our support team to explore partnership opportunities or visit our Affiliate Program page.
Do you provide wholesale options?
Yes. Wholesale opportunities are available subject to eligibility. Contact support for pricing information.