Frequently Asked Questions

Lyophilized (freeze-dried) peptides are stable at room temperature for up to two years. Once reconstituted, store them in a cold environment to maintain their integrity.

Our products undergo HPLC testing at a reputable 3rd party lab. For testing results on our products you can visit the COA page here, or you can find testing under product pages.

Research materials should only be handled by qualified researchers for legitimate laboratory research use, in accordance with our Terms & Conditions. Products are not intended for human or animal use or consumption.

While peptides do not expire we do theorize that they may degrade which may impact the reliability of your research work. For this reason we recommend researching with them within one year of purchasing.

Orders are typically processed and shipped the same business day when placed before our daily shipping cutoff (12PM CT). Orders placed after the cutoff, on weekends, or on holidays ship the next business day. Transit times vary by method and carrier; see our Shipping Policy for details.

Essential Aminos currently ships only within the United States. We do not export products internationally from this website. Orders placed outside the United States are not accepted. See our Shipping Policy.

Please contact us immediately via our Contact Us page or email support@essentialaminos.com. We will do our best to update the address before shipment, but we cannot guarantee changes once the package has been processed or handed off to the carrier. Essential Aminos is not responsible for delivery issues caused by incorrect or incomplete addresses.

We ship within the United States via FedEx, UPS, and USPS (including FedEx 2Day, FedEx Priority Overnight, and UPS/USPS options where available). Full details are in our Shipping Policy.

We highly recommend against using shipping forwarders, as customers have had significant issues with them. Use a shipping forwarder at your own risk.

Orders are typically processed and shipped the same business day Monday–Friday when placed before 12PM CT. Orders after the cutoff, on weekends, or on holidays ship the next business day. During holidays or disruptions, carrier delays may occur.

Delivery time estimates are approximate and not guaranteed. Once a package leaves our facility, it is under the control of the carrier. If tracking has not updated for five consecutive days, please contact us at support@essentialaminos.com or via Contact Us so we can review the shipment with the carrier. See our Shipping Policy.

We work to ship expedited orders as quickly as possible. Once a product leaves our warehouse, delivery timing is managed by FedEx, UPS, or USPS. If tracking has stalled or there is a significant delay, contact our support team at support@essentialaminos.com and we will help investigate. Details: Shipping Policy.

Please check your spam/junk folder. Our system sends automated emails including order confirmations, shipping updates, and tracking information. If you haven't received these, contact us at support@essentialaminos.com or via Contact Us.

If your order doesn't seem to process, reach out to our support team at support@essentialaminos.com or via Contact Us.

Check your delivery area, mailbox, neighbors, or building management. Carriers may mark packages delivered slightly before final drop-off—allow up to 24 hours. If you still cannot locate it, contact support@essentialaminos.com. Note: if the carrier confirms delivery, our delivery guarantee is fulfilled and we typically cannot reship free of charge. See our Refund Policy and Shipping Policy.

1. US credit cards (Visa, Mastercard, AMEX)
2. Bitcoin (via BTCPay)

All transactions are subject to verification per our Terms & Conditions.

This is a rare system error. Please email support@essentialaminos.com, and we will ensure your order is processed correctly.

We aim to provide easy and secure payment options. Despite following applicable rules and regulations, certain payment processors may be unable to continue working with us, which can require us to discontinue a method.

Purchasers must be 21 years of age or older and buying solely for lawful laboratory or scientific research. See our Terms & Conditions for full eligibility and prohibited-use rules.

Contact us via Contact Us or email support@essentialaminos.com within 14 days of delivery with your order number and photos of the damage. Once verified, we will replace the item or issue a refund. See our Refund Policy.

Contact us as soon as possible via Contact Us or support@essentialaminos.com. Once we verify the claim against our fulfillment logs, we will ship the missing or correct items. All orders are documented and photographed prior to shipping.

Because of temperature and environmental sensitivities, we cannot accept returns or refunds for change-of-mind or customer order errors. We accept returns and exchanges for damaged or defective products only, when reported within 14 days of delivery with order number and photos. Full details: Refund Policy.

For verified damaged or defective products, we will replace the item or issue a refund after you contact us within 14 days with your order number and photos. Lost shipments confirmed as non-delivered by the carrier are reshipped at no cost; carrier-confirmed deliveries are not reshipped free of charge. Provide: order #, description of the issue (with pictures), and payment method. See our Refund Policy and Shipping Policy.

Chargebacks are taken seriously and may be treated as fraud when used inappropriately. A change of mind is not grounds for a chargeback. Contact us first at support@essentialaminos.com so we can help. See our Refund Policy and Terms & Conditions.