Free domestic shipping over $200
Youthful Aminos is a research peptide supplier dedicated to providing the highest-quality, laboratory-grade peptides for scientific research and investigation. All of our products undergo rigorous quality testing and are manufactured to ≥99% purity standards.
No. All products sold by Youthful Aminos are strictly for laboratory and research use only. They are not intended for human consumption, veterinary use, or therapeutic application. By purchasing, you agree to these terms.
Yes. We provide COAs for every product and every batch. Each COA includes HPLC purity analysis, mass spectrometry data, and amino acid sequencing verification. COAs are available upon request or can be downloaded from your account dashboard.
All of our peptides are manufactured to ≥99% purity as verified by High-Performance Liquid Chromatography (HPLC). We take no shortcuts in our purification process — every batch is independently tested before release.
While guest checkout is available, we recommend creating an account. Account holders get access to order tracking, COA downloads, reorder history, and exclusive promotions.
Most orders are processed and shipped within 1–2 business days. Standard shipping typically arrives within 3–5 business days. Expedited shipping options are available at checkout for 1–2 business day delivery. You will receive a tracking number via email once your order ships.
Yes. We offer free standard shipping on all orders over $200. Orders under $200 are charged a flat-rate shipping fee calculated at checkout based on destination.
Currently, we ship within the United States only. We are working to expand our international shipping capabilities. Please check back or subscribe to our newsletter for updates on international availability.
Absolutely. Once your order ships, you will receive an email with a tracking number and link. You can also track your order status from your account dashboard at any time.
Contact us immediately with your order number and photos of the damage or incorrect items. All orders are photographed with their corresponding invoice prior to shipment for quality assurance. Once verified, we will reship the correct items at no additional cost.
Lyophilized (unreconstituted) peptides should be stored at -20°C in a dry, dark environment for maximum stability. Once reconstituted with bacteriostatic water, peptides should be stored at 2–8°C (refrigerator) and used within 14 days for optimal integrity.
Bacteriostatic water is a sterile, non-pyrogenic water preparation containing 0.9% benzyl alcohol as a preservative. It is the standard diluent used to reconstitute lyophilized peptides for research applications. The preservative allows for multiple withdrawals from a single vial while maintaining sterility.
All of our peptides are supplied as lyophilized (freeze-dried) powder in sealed, sterile glass vials. This form ensures maximum stability and shelf life. Reconstitution is required prior to use in research applications.
Slowly inject bacteriostatic water along the wall of the vial containing the lyophilized peptide. Do not shake — gently swirl or roll the vial until the powder is fully dissolved. The amount of diluent depends on your desired concentration. Always use sterile technique.
Lyophilized peptides stored at -20°C typically maintain stability for 24+ months from the date of manufacture. Once reconstituted, the solution should be used within 14 days when stored at 2–8°C. Check the expiration date on your product label for specific guidance.