Metabolic Research Peptides

Incretin-pathway research compounds — molecules engaging the GLP-1, GIP and glucagon receptors — studied for their effects on glycemic markers, hepatic lipid handling and energy expenditure in controlled laboratory settings. This is our most requested category.

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Retatrutide vs Tirzepatide — which to acquire

Retatrutide (20mg) — often shortened to reta — is a triple agonist targeting GLP-1, GIP and the glucagon receptor (GCGR). That third target is the broadest incretin profile currently under active investigation, and it is what drives the compound’s effect on energy expenditure. $119.00 per vial, or $5.95 per mg. Tirzepatide (30mg) is a dual GLP-1/GIP agonist with a substantially larger published research base. Researchers modelling comparative incretin activity commonly acquire both — the retatrutide listing carries a side-by-side receptor comparison table. $99.99 per vial.

Sourcing and supplier standards

We hold stock locally in the San Francisco Bay Area rather than drop-shipping, which is what makes same-day delivery possible and what keeps lot tracking straightforward. If you are evaluating suppliers, our guide to choosing a reliable research compound supplier sets out what to look for.

Same-day Bay Area delivery

Order before 12:00 p.m. Pacific on a business day and your order qualifies for same-day courier delivery across the San Francisco Bay Area — San Francisco, Oakland, San Jose, Fremont, Sunnyvale, Santa Clara and 100+ more cities. Outside the Bay Area, orders ship FedEx 2Day in temperature-controlled packaging anywhere in the United States. Check delivery zones and pricing for your city. For Laboratory Research Use Only — Not for Human or Animal Consumption. Not for diagnostic or therapeutic use. Must be 21+ to purchase.