Shipping and delivery: what to compare

Quick answer: Compare four things next to the price: shipping cost and free-shipping threshold, the delivery window, where the vendor ships from, and how the package is handled. A cheaper vial can become the dearer order once shipping is added.

Shipping cost and thresholds

Shipping is usually billed separately from a coupon. Some vendors waive it above a minimum order, which can tip the comparison toward a vendor with a smaller discount. Add shipping to the price before you work out the cost per mg.

Delivery windows

Vendors quote windows such as 2 days or 3 to 7 days. These are estimates from the vendor and do not include processing time, so treat them as a guide. In the vendor data we hold, most quotes fall between 2 and 5 days, while a few say to contact the vendor.

Where it ships from

Almost every vendor in our list ships from the United States. A few ship from other countries, which can mean longer transit and possible customs checks. If the origin is not listed, ask before ordering.

Handling and storage on arrival

Research peptides usually arrive as freeze-dried powder. Check the vendor’s and the certificate’s storage guidance, inspect the package on arrival, and avoid leaving parcels in heat. This is general material handling and not advice on use.

Put it in numbers

Use the price per mg calculator with the shipping box filled in, so a vendor with free shipping and one without are compared fairly.