FAQ

Can't find your answer? Contact us and our team will reply by email.

How do I pay?

We accept Zelle. Place your order as normal, and your confirmation email shows the exact amount and where to send it. Put your order number in the Zelle memo so we can match it.

Do I need an account to order?

Yes, but it takes seconds. At checkout, enter your email and we'll send a one-time code. That creates your account; there's no password to remember and no approval to wait for.

When does my order ship?

Monday to Friday, orders placed and paid before 2:00 PM Pacific typically ship the same day. Occasionally there are exceptions. You'll get tracking by email once it's on its way. Standard shipping is free on orders over $400.

How do I know what's in the vial?

Every batch is tested by an independent lab. The certificate of analysis is on the product page and in the COA library, with the lab, batch number and test date.

What does "research use only" mean?

Our products are sold solely for in-vitro laboratory research. They are not for human or veterinary use, and we can't give advice on personal use. You must be 18 or older to buy.

Are these products legal to buy?

They are sold for research purposes only. Rules vary by country and state, so check your local regulations before ordering.

What are lyophilized peptides?

Lyophilized means freeze-dried. Removing the moisture keeps a peptide stable in its sealed vial until it's used.

How should I store an unopened vial?

Keep sealed, lyophilized vials in a cool, dry, dark place. For long-term storage, −20 °C is standard. Each product page lists its storage conditions.

Why is bacteriostatic water limited to one per order?

It's offered as a convenience with a peptide order, so it's limited to one vial per order and can't be ordered on its own.

What if my order arrives damaged or wrong?

Email info@peptidesupply.us within 48 hours of delivery with your order number and photos, and we'll replace it. We can't accept returns or give refunds on research materials. See our refund policy for the details.