Frequently asked questions

Start with the peptide, product form, and listed size. A vial, capsule bottle, spray bottle, and raw powder are separate catalog items. Check the package quantity too: a multi-item promotion is different from the price of one item.

When an offer shows a code, its price includes the recorded discount. Apply that code on the vendor's site and confirm its terms there. A sale may exclude codes or have different quantity rules; we show those exceptions rather than assume discounts stack.

The listed item price excludes shipping, tax, and payment fees. An “at checkout” figure is an estimate using the vendor terms we have and your checkout preferences. Unpublished charges remain unknown. Confirm the final amount with the vendor.

It means our daily price check found a match with the vendor's price source. It does not verify a product, lab report, or checkout total. We schedule vendor feed reads every ten minutes and market-store reads hourly; failed reads can delay updates. Use the date shown with an offer, then confirm its current price and stock with the vendor.

We compare the after-code item price with the median price from our reference panel of other stores listing the same form and size in stock. The vendors we link to do not count toward that benchmark. At least three other stores must qualify.

Good price means at least 5% below the median; Above market means at least 5% above it. Fair price is between those thresholds. Without enough comparable stores, we show no verdict. These labels describe price, not product quality.

Read how we compare prices.

Sign in with a free PeptideSpend account to see prices, codes, vendor links, and the full catalog. Your account also keeps your favorites across devices. Sign in or create an account.

No. A favorite saves the peptide to your account. Turn on “Emails from PeptideSpend” in Email preferences if you want price-drop alerts for favorites and other price emails. The same switch turns them off. Marketing emails include an unsubscribe link.

You leave PeptideSpend for the vendor's store. Our vendor links carry affiliate attribution, and we may earn a commission at no extra cost to you. PeptideSpend does not sell, ship, or handle products. The vendor handles orders, payments, and returns.

No. We compare research-use catalog pricing; we do not test or certify products or verify certificates of analysis. Vendor testing statements remain vendor-reported. This site is for laboratory research-use comparison, not human or animal consumption or medical advice. See Testing information.

Email contact@peptidespend.com with the PeptideSpend page, vendor product URL, listed form and size, and what differs. A screenshot and the time you checked help us compare the same offer. Do not send passwords, payment details, or private account information.