Cheapest Tirzepatide 40 mg

Per milligram, Mix Peptides is cheapest right now at USD 0.275 per mg (2026A58-06 (Tirzepatide 40mg kit), 10 × 40 mg = 400 mg, USD 110.00). The lowest total at checkout is Gulf Coast Aminos at USD 55.96 for 1 × 40 mg. Both come from 32 vendors with a current, in-stock 40 mg price.

Across 32 vendors, a 40 mg vial works out to $11.00 to $255.00 (median $32.00), counting kits by their price per vial. Shipping is extra at most vendors and is not included.

The cheapest kit here is USD 0.275 per mg (Mix Peptides, 10 × 40 mg = 400 mg, USD 110.00 in total); the cheapest single vial is USD 1.40 per mg (Gulf Coast Aminos, USD 55.96). A kit is only cheaper if you will use every vial before it expires.

Vendors below a metascore of 70, vendors you can only order from by message, listings marked out of stock, prices older than 14 days, and prices far outside the range other vendors charge for the same peptide (usually a vial-count mistake or a whole kit priced as one vial).

Prices are read from each vendor's own website; the newest on this page was checked on 13 Nov 2026. The page is rebuilt with every price refresh, and a listing drops off once its price is more than 14 days old. Check the vendor's page before ordering.

No. The tables are sorted by price only. Some Buy links are affiliate links that may earn PeptideCompare a commission at no extra cost to you.