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Research PeptidesYou can actually Verify.
Every lot is synthesized domestically, independently lab tested, and shipped with a chromatogram that proves it.
Peptides
Why researchers choose Aminotime
Verified research starts with purity.
We are committed to providing high-purity research compounds with full transparency. Every product is independently tested and backed by a certificate of analysis.
Every lot is sent to an independent lab before it is listed.
The certificate for your exact lot ships with the vial.
Measured purity is reported per lot, never a batch average.
In-stock orders placed before 2PM ET ship the same day.
Testing & transparency
Certificate of analysis with every order.
Each batch is independently tested using HPLC + LC-MS and includes a full chromatogram.
FAQ
Frequently asked questions
Answers to common questions about ordering, testing, shipping, and more.
What is a research peptide?
A research peptide is a short chain of amino acids synthesized for laboratory study, such as in vitro assays, analytical method development, and reference standards. Our peptides are supplied as lyophilized powder for qualified research use only.
Are these products for human use?
No. Every product is sold strictly for in vitro laboratory research. They are not for human or veterinary use, not for diagnostic or therapeutic use, and not a food, drug, cosmetic, or supplement. See our Research Use Only Policy.
Who is allowed to purchase?
Sales are limited to qualified researchers, laboratories, and institutions aged 21 or older, purchasing for in vitro research and development. We may request institutional verification before releasing an order.
Do you provide a COA with every order?
Yes. Each product page carries the certificate of analysis for the lot currently in stock, and every order ships with it. If you need an archived COA for a previous lot, contact support with the lot number.
How are the products tested?
Every lot is independently tested using HPLC-UV for purity and LC-MS to confirm molecular weight. The purity figure is the measured area-percent result for that specific lot, not a nominal specification or batch average.
How long does shipping take?
In-stock orders placed before 2PM ET dispatch the same business day. Domestic delivery typically takes 2–4 business days standard, or next day with expedited shipping.
What is your return policy?
Because these are temperature-sensitive research materials, we cannot accept returns on shipped vials. If a lot arrives damaged, mislabeled, or does not match its certificate, contact us within seven days and we will replace or refund it.
Do you offer wholesale pricing?
Yes. Volume tiers begin at five vials per compound, and we offer standing pricing for repeat institutional accounts. Contact us with your compound list and expected volume.
Still have questions?
Send us a message about an order, a COA, wholesale pricing, or your account. A real person will reply.
Contact supportCreate an account for 20% off your first order and earn 1 point for every $1. Sign up
All products are for in vitro laboratory research. Read the policy