Cheapest Retatrutide 15 mg

Per milligram, LN Peptides is cheapest right now at USD 0.767 per mg (RT15 Retatrutide 15mg * 10 vials, 10 × 15 mg = 150 mg, USD 115.00). The lowest total at checkout is Domestic Peps at USD 35.00 for 1 × 15 mg. Both come from 29 vendors with a current, in-stock 15 mg price.

Across 29 vendors, a 15 mg vial works out to $11.50 to $150.00 (median $25.00), counting kits by their price per vial. Shipping is extra at most vendors and is not included.

The cheapest kit here is USD 0.767 per mg (LN Peptides, 10 × 15 mg = 150 mg, USD 115.00 in total); the cheapest single vial is USD 3.26 per mg (Gulf Coast Aminos, USD 48.96). 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.