Cheapest Retatrutide 100 mg
7 vendors that pass our metascore cutoff (70+) list Retatrutide in 100 mg vials with a current, in-stock price. The lowest price per milligram is USD 0.430 at Peptides Book (10 × 100 mg = 1000 mg for USD 430.00); the lowest total at checkout is USD 176.00 at Bio Pepz (1 × 100 mg). Cheapest is not the same as best: the metascore beside each vendor sums up independent lab tests of vials bought like a customer would, whether its own lab reports hold up and whether its claims match what buyers measured. Affiliate links never change the order.
Prices last checked 13 Nov 2026 (oldest on this page: 11 Nov 2026). Shipping is not included.
Cheapest per mg
One listing per vendor: its lowest price per milligram for a 100 mg vial, including multi-vial kits.
| # | Vendor · metascore | Listing | Total price | Per vial | Per mg | |
|---|---|---|---|---|---|---|
| 1 | Peptides Book 72 | Retatrutide 100mg*10vials 10 × 100 mg = 1000 mg · checked 2026-11-13 | USD 430.00 | USD 43.00 | USD 0.430 | Buy |
| 2 | Peptides For Less 78 | GLP-3 RT 10-Vial Research Kit | 10mg–100mg 100mg 10 × 100 mg = 1000 mg · checked 2026-11-13 Code PeptideCompareNet | USD 600.00 | USD 60.00 | USD 0.600 | Buy |
| 3 | Sunrise BioResearch 84 | SUN-RT 100mg x 10vials, 1000mg 10 × 100 mg = 1000 mg · checked 2026-11-13 | USD 625.00 | USD 62.50 | USD 0.625 | Buy |
| 4 | Royal Peptides 88 | Retatrutide 10-Vial Bulk Kit RT 100mg Kit (1000mg) 10 × 100 mg = 1000 mg · checked 2026-11-11 Code aaronshelhamer: 10% off, applied | USD 135.00 | USD 1.35 | Buy | |
| 5 | Bio Pepz 75 | Reta 100mg 1 × 100 mg · checked 2026-11-13 | USD 176.00 | USD 176.00 | USD 1.76 | Buy |
| 6 | Ion Peptide 87 | ION-3R 100mg 1 × 100 mg · checked 2026-11-13 | USD 209.97 | USD 209.97 | USD 2.10 | Buy |
| 7 | Lab Rat Peptide 72 | LRP-3RT 100MG 1 × 100 mg · checked 2026-11-13 | USD 299.00 | USD 299.00 | USD 2.99 | Buy |
Lowest total price
One listing per vendor: the least you can pay for 100 mg vials of Retatrutide, usually a single vial.
| # | Vendor · metascore | Listing | Total price | Per vial | Per mg | |
|---|---|---|---|---|---|---|
| 1 | Bio Pepz 75 | Reta 100mg 1 × 100 mg · checked 2026-11-13 | USD 176.00 | USD 176.00 | USD 1.76 | Buy |
| 2 | Ion Peptide 87 | ION-3R 100mg 1 × 100 mg · checked 2026-11-13 | USD 209.97 | USD 209.97 | USD 2.10 | Buy |
| 3 | Lab Rat Peptide 72 | LRP-3RT 100MG 1 × 100 mg · checked 2026-11-13 | USD 299.00 | USD 299.00 | USD 2.99 | Buy |
| 4 | Peptides Book 72 | Retatrutide 100mg*10vials 10 × 100 mg = 1000 mg · checked 2026-11-13 | USD 430.00 | USD 43.00 | USD 0.430 | Buy |
| 5 | Peptides For Less 78 | GLP-3 RT 10-Vial Research Kit | 10mg–100mg 100mg 10 × 100 mg = 1000 mg · checked 2026-11-13 Code PeptideCompareNet | USD 600.00 | USD 60.00 | USD 0.600 | Buy |
| 6 | Sunrise BioResearch 84 | SUN-RT 100mg x 10vials, 1000mg 10 × 100 mg = 1000 mg · checked 2026-11-13 | USD 625.00 | USD 62.50 | USD 0.625 | Buy |
| 7 | Royal Peptides 88 | Retatrutide 10-Vial Bulk Kit RT 100mg Kit (1000mg) 10 × 100 mg = 1000 mg · checked 2026-11-11 Code aaronshelhamer: 10% off, applied | USD 135.00 | USD 1.35 | Buy |
Some Buy links are affiliate links: we may earn a commission at no extra cost to you. Coupon prices shown struck through are list prices; an applied code needs no conditions. Listings flagged as unusually cheap or likely kit prices, out-of-stock listings and prices older than 14 days are left out.
Cheapest Retatrutide 100 mg: questions
What is the cheapest 100 mg Retatrutide?
Per milligram, Peptides Book is cheapest right now at USD 0.430 per mg (Retatrutide 100mg*10vials, 10 × 100 mg = 1000 mg, USD 430.00). The lowest total at checkout is Bio Pepz at USD 176.00 for 1 × 100 mg. Both come from 7 vendors with a current, in-stock 100 mg price.
How much does a 100 mg vial of Retatrutide cost?
Across 7 vendors, a 100 mg vial works out to $43.00 to $299.00 (median $135.00), counting kits by their price per vial. Shipping is extra at most vendors and is not included.
Is a Retatrutide kit cheaper than single 100 mg vials?
The cheapest kit here is USD 0.430 per mg (Peptides Book, 10 × 100 mg = 1000 mg, USD 430.00 in total); the cheapest single vial is USD 1.76 per mg (Bio Pepz, USD 176.00). A kit is only cheaper if you will use every vial before it expires.
Which listings are left out?
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).
How current are these prices?
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.
Do affiliate links change the ranking?
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.