99%+ PURITY VERIFIED·INDEPENDENT LAB TESTING·SHIPS WITHIN CANADA·DISCREET EXPRESS DELIVERY
JA Performance Peptides
JA Performance
Peptides
Metabolic Health

Weight Loss Peptides Canada

Retatrutide and Tesamorelin represent the leading edge of metabolic peptide research. Retatrutide simultaneously targets GIP, GLP-1, and glucagon receptors — producing up to 24% body weight reduction in Phase 2 trials. Tesamorelin, an FDA-approved GHRH analogue, drives visceral fat reduction through physiological growth hormone stimulation. Both independently tested to 99%+ purity and shipped within Canada.

🇨🇦Ships within Canada only
Retatrutide
Body Composition

Retatrutide

Triple-agonist metabolic recomposition

From $80.00
Tesamorelin
Performance

Tesamorelin

Growth hormone optimisation through natural pulsatile release

From $100.00

Metabolic Peptide Research

Retatrutide

Retatrutide (LY3437943) is an investigational triple agonist developed by Eli Lilly that simultaneously targets GLP-1, GIP, and glucagon receptors. The Phase 2 TRIUMPH trial demonstrated up to 24.2% body weight reduction at 48 weeks — the highest figure recorded for any pharmacological agent in a clinical trial. The added glucagon component drives energy expenditure beyond what dual agonists achieve.

Read the Retatrutide guide →

Tesamorelin

Tesamorelin is a 44-amino-acid synthetic GHRH analogue that holds FDA approval for visceral fat reduction in HIV-associated lipodystrophy — one of the few research peptides with a full Phase 3 human dataset. It stimulates endogenous growth hormone release in physiological pulses, preserving the hypothalamic feedback loop and avoiding sustained insulin resistance associated with exogenous GH.

Read the Tesamorelin guide →

Research use only. All products sold by JA Performance are strictly for laboratory and in vitro research purposes. Not for human consumption, medical use, or veterinary use.