Which should you choose? Here's what you need to know.
Semaglutide is the proven GLP-1 standard (Ozempic/Wegovy). Cagrilintide works through amylin receptors — a completely different pathway. Novo Nordisk is actually combining them as CagriSema for even better results.
On 9 Oct 2026 Peptide Compare tracked 38 vendors selling Cagrilintide, cheapest in stock $4.50 per mg at Amino Sequence, and 29 selling Semaglutide, cheapest $1.83 per mg at Modern Research.
Cagrilintide is a long-acting amylin analog that mimics the satiety hormone your pancreas releases after meals. It has notably lower nausea rates than GLP-1 agonists.
Choose Cagrilintide if:
You can't tolerate GLP-1 side effects like nausea, or you're specifically interested in amylin-pathway appetite suppression.
Semaglutide is the gold-standard GLP-1 receptor agonist with FDA approval for both diabetes and weight management. It has the most real-world safety data of any weight loss peptide.
Choose Semaglutide if:
You want the most proven, FDA-approved option with years of real-world data across millions of patients.
Cagrilintide + semaglutide (CagriSema) is Novo Nordisk's next-gen combination, achieving 20.4% weight loss in Phase 3 — better than either alone. FDA filing submitted Dec 2025.
Once you've decided which peptide fits your needs, here's how they compare on price and vendor options. Prices verified Oct 9, 2026.
Our top-rated vendor for each, based on trust scores, purity testing, and price.
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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.