Reference-grade peptides
Push the Boundaries
of Longevity
A catalog of synthetic peptide reference standards supplied with batch certificates of analysis
Best Sellers
Built on Quality & Precision
Why Researchers Choose Us
Third-Party Tested
Third-party tested for identity, purity, and concentration.
Next-Day Shipping
Orders ship within 48 hours, with tracking provided for secure delivery.
U.S Based Support
Professional U.S.-based support team available
New Arrivals
Where New Discoveries Launch First
Longevity's discovery team actively monitors emerging peptide structures, conformations, and published findings, enabling us to bring new offerings to market ahead of broader industry adoption. You’ll often see our releases appear here weeks to months before they are available elsewhere.

Frequently Asked Questions
Exchanges?
Exchanges are available for unused and unopened items within 30 days of your order being placed. The item must be unused and in its original, sealed packaging. Unfortunately, already reconstituted products do not qualify for an exchange.
***The customer is responsible for the shipping fees associated with exchanging an item unless it was damaged during shipping.
If your item was damaged during transport or arrived broken, a photo and video must be provided of the issue as soon as possible. This is required for our team to review the situation with management and determine the appropriate next steps.
To proceed, contact customer service for exchange instructions
When do you ship?
All orders placed before 4pm are shipped the same day.
Why do I see disclaimers everywhere?
ALL products on our website are sold for research and laboratory use. The products should not be used in form of cosmetic, food additive, chemical, drugs, or other applications not classified in this document. The listing of a material on this site does not constitute a license to its use in infringement of any patent. All customers represent and warrant that through their own review and study that they are fully aware and knowledgeable about the following: Government regulations regarding the use of and exposure to all products. The health and safety hazards associated with the handling of the products they purchase. The necessity of adequately warning of the health and safety hazards associated with any products. The company holds its right to cancel any purchase done if there is any proof or the company sees that you are buying for use other than it is sold for.
“Longevity Pro’s” products are intended solely for laboratory research purposes and are not to be used for any other purposes, including but not limited to vitro diagnostic purpose, in food drugs, medical devices, or cosmetics for humans or animals or for commercial purposes. The purchaser agrees that the products have not been sterilized or tested by “Longevity Pro’s” for safety and efficacy in food, drug, medical device, cosmetic, commercial or any other use. The purchaser expressly represents and warrants to “Longevity Pro’s” that the purchaser will properly test, use, manufacture and market any products purchased from “Longevity Pro’s” and/or materials produced with products purchased from “Longevity Pro’s” in accordance with the practices of a reliable person who is experienced in the field and in strict compliance with all applicable laws and regulations, now and hereinafter enacted.
What size vials do your peptides come in?
Most peptides are sold in 3ml glass vials. We do sell some products in 10ml vials however, these are noted on the product pages for full transparency prior to purchasing. Please visit the product page details to find out what size vial your product of interest is sold in.
Refunds?
We offer free replacements on items that have been damaged during transport/shipping. If you received a damaged or broken item, a photo and video must be provided of the issue as soon as possible. This is required for our team to review the situation with management and determine the appropriate next steps.
Returns are available for unused and unopened items within 30 days of your order being placed. The item must be unused and in its original, sealed packaging. Unfortunately, already reconstituted products do not qualify for a return.
***The customer is responsible for the shipping fees associated with returning an item unless it was damaged during shipping. There is a 20% restocking fee that will be deducted from your refund upon receipt of your returned goods. Processing times for refunds vary depending on the method of payment used. Please reach out to customer service for return instructions.











