Tesofensine vs Tirzepatide
Which should you choose? Here's what you need to know.
The short answer
Tesofensine and Tirzepatide are both weight loss (glp-1) peptides, but they work differently. A triple monoamine reuptake inhibitor originally developed for neurological conditions, now studied for significant weight loss effects. A dual GIP/GLP-1 receptor agonist approved as Mounjaro for type 2 diabetes and Zepbound for weight management. The second most popular GLP-1 peptide. Compare vendor pricing and availability below.
On 18 Sep 2026 Peptide Compare tracked 13 vendors selling Tesofensine, cheapest in stock $99.99 per mg at Umbrella Labs, and 32 selling Tirzepatide, cheapest $1.14 per mg at Step One.
Tesofensine
Weight Loss (GLP-1)A triple monoamine reuptake inhibitor originally developed for neurological conditions, now studied for significant weight loss effects.
Tirzepatide
Weight Loss (GLP-1)A dual GIP/GLP-1 receptor agonist approved as Mounjaro for type 2 diabetes and Zepbound for weight management. The second most popular GLP-1 peptide.
Price & availability
Once you've decided which peptide fits your needs, here's how they compare on price and vendor options. Prices verified Sep 18, 2026.
Tesofensine
Tirzepatide
$59.00
Starting from
$30.00
$325.95
Avg. price per mg
$8.86
13
Vendors selling it
32
9 options
In stock now
106 options
7.7/10
Top trust score
9.0/10
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Our top-rated vendor for each, based on trust scores, purity testing, and price.
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Where does this data come from?
We re-check vendor prices continuously and score vendors on Finnrick blind-test results — samples bought anonymously and sent to a lab, not vendor claims. No vendor can pay to rank higher. See our full methodology.