← All articles

Retatrutide in South Africa: The Triple Agonist Changing Weight Loss

June 2026·7 min read
Retatrutide in South Africa: The Triple Agonist Changing Weight Loss

If you've heard about semaglutide (Ozempic) or tirzepatide (Mounjaro) — retatrutide is what comes next. It's the most advanced metabolic peptide available anywhere in the world right now, and South Africans are starting to take notice. This guide covers everything you need to know: what retatrutide is, how it works, what real results look like, and how to access it in South Africa through a personalised protocol.

What Is Retatrutide?

Retatrutide (LY3437943) is a triple receptor agonist — it activates three hormone pathways simultaneously: • GLP-1 (suppresses appetite via the brain's satiety centre) • GIP (enhances insulin secretion, improves fat metabolism) • Glucagon (increases energy expenditure through fat oxidation) Semaglutide only targets GLP-1. Tirzepatide targets GLP-1 and GIP. Retatrutide hits all three — which is why the clinical data is so different.

What Do the Trials Show?

Phase 2 clinical trials published in the New England Journal of Medicine showed participants losing an average of 24% of their body weight over 48 weeks. That's roughly double the weight loss of semaglutide in comparable timeframes. Beyond weight loss, participants saw improvements in: • Blood sugar regulation • Triglyceride and cholesterol levels • Blood pressure • Liver fat (NAFLD markers)

Who Is It For?

Retatrutide is best suited for: • Adults who have not responded fully to semaglutide or tirzepatide • Those with significant weight to lose (20kg+) • People with metabolic syndrome or insulin resistance • Anyone who wants the most advanced tool available, not a second-best option

How Is It Used?

Retatrutide is a weekly subcutaneous injection. Dosing starts low and is titrated upward over 4–8 weeks to allow the body to adjust and minimise side effects like nausea. At Vitagenix, every retatrutide client receives a personalised protocol through the myvitagenix.com app — including dosing schedule, tracking, and direct access to our team.

Getting Retatrutide in South Africa

Vitagenix is one of the few South African suppliers offering pharmaceutical-grade retatrutide with full COA documentation and personalised protocol support. Enquire about Retatrutide via Vitagenix →

Personalized Protocol

Get your personalized dosage & protocol

Complete your body analysis on the Vitagenix app for protocol, dosing and timing tailored to your goals.

Open myvitagenix.com →