What to check before buying research peptides in bulk

Bulk buyers get burned in the same few ways. This is the list we would want a buyer to hold us to.

Certificates you can verify

Not a certificate you are shown, one you can check at its source. Ask how a batch number is verified and whether the answer comes from the supplier or from the laboratory that ran the test.

A written specification

Purity limit, identity method, water content, net content, storage and shelf life, stated before you buy. If a supplier cannot say what a batch is released against, the certificate has nothing to be measured against either.

One batch number end to end

The same number on the vial, the carton, the packing list and the certificate. Retained samples held against queries.

Prices you can see

A price list with the code, the strength, the price per box and the price per vial, visible without an account and without a conversation. Freight either in the price or quoted before you pay, never discovered afterwards.

Payment that confirms itself

An address quoted for your order alone and an exact figure, so a payment is matched to an order without a screenshot and an email. Stated lead times for lines not on the shelf.

What is not on offer

Any supplier making claims about human use, dosing or health effects of a research compound is telling you something about their compliance. Everything on this site is for laboratory research only.