Semaglutide vs Tesofensine
Which should you choose? Here's what you need to know.
The short answer
Semaglutide is FDA-approved and works through the gut-brain GLP-1 pathway. Tesofensine is an unapproved neurotransmitter reuptake inhibitor that works more like a stimulant — different mechanisms, very different risk profiles.
On 20 Sep 2026 Peptide Compare tracked 32 vendors selling Semaglutide, cheapest in stock $1.50 per mg at Step One, and 13 selling Tesofensine, cheapest $99.99 per mg at Umbrella Labs.
Semaglutide
Weight Loss (GLP-1)Semaglutide (Wegovy/Ozempic) is a GLP-1 receptor agonist with full FDA approval for weight management. It reduces appetite and slows digestion, with clinical trials showing 15–20% body weight loss. It has years of real-world safety data across millions of patients.
Choose Semaglutide if:
You want an FDA-approved, well-studied option that works through gut hormones rather than central nervous system stimulation.
Tesofensine
Weight Loss (GLP-1)Tesofensine is a triple monoamine reuptake inhibitor — it blocks the reuptake of serotonin, dopamine, and norepinephrine in the brain. Originally studied for neurological conditions, it was found to reduce appetite and boost metabolism. Phase 2 trials showed roughly 10–12% weight loss, but it is not FDA-approved.
Choose Tesofensine if:
You're specifically interested in a dopamine/serotonin-pathway approach and are comfortable with a compound that lacks FDA approval and has stimulant-like side effects.
Price & availability
Once you've decided which peptide fits your needs, here's how they compare on price and vendor options. Prices verified Sep 20, 2026.
Semaglutide
Tesofensine
$20.00
Starting from
$59.00
$24.82
Avg. price per mg
$325.95
32
Vendors selling it
13
61 options
In stock now
9 options
8.7/10
Top trust score
7.7/10
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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.