Alluvi Retatrutide 20 mg – What Current Research Says About the Triple-Agonist Weight-Loss Injection
Alluvi Retatrutide 20 mg refers to a research-grade formulation derived from Eli Lilly’s investigational compound Retatrutide (LY3437943).
It is a GLP-1, GIP and glucagon triple-agonist peptide being studied for its potential to regulate appetite, glucose levels, and overall energy expenditure.
Unlike approved weight-loss injections such as Wegovy (semaglutide) or Mounjaro (tirzepatide), Alluvi Retatrutide 20 mg remains in clinical trials.
Its mechanism activates three incretin pathways simultaneously, which may lead to greater fat-loss effects and improved metabolic control compared with current single- or dual-agonist drugs.
How It Works – The Triple-Agonist Mechanism
Retatrutide binds to three receptors:
1. GLP-1 receptor – reduces appetite and slows gastric emptying.
2. GIP receptor – enhances insulin response and promotes fat metabolism.
3. Glucagon receptor – increases energy expenditure by stimulating calorie burn.
This “three-pathway” action forms the foundation of the triple-agonist peptide concept: controlling appetite, boosting metabolism, and improving glucose regulation in a single compound.
Clinical Trial Results and Weight-Loss Data
Early results published in the New England Journal of Medicine (2023) showed that participants taking Retatrutide experienced up to 24 % average weight reduction after 48 weeks – the strongest data reported for any injectable obesity therapy so far.
Other findings include:
Significant improvement in insulin sensitivity and HbA1c levels.
Reduction of liver fat and triglyceride concentrations.
Fewer hunger spikes and better overall metabolic flexibility.
Researchers describe Retatrutide as a “next-generation GLP-1 analogue” and a potential breakthrough for obesity and type 2 diabetes management once approved.
Current Development Status
Developer: Eli Lilly and Company
Phase 3 Trials: Ongoing (2024 – 2026)
Target Indications: Obesity, type 2 diabetes, non-alcoholic fatty liver disease
Projected Regulatory Review: Late 2026 – 2027 (MHRA / EMA)
At present, We (over the counter online pharmacy) supply Alluvi Retatrutide 20 mg it is authorised for sale or without prescription in the UK or EU.
Expected Cost and Market Position After Approval
Analysts expect Retatrutide to enter the same market segment as current GLP-1 injections.
Projected UK retail pricing could range between £250 and £350 per month, depending on dose and pharmacy service.
Product Mechanism Est. Monthly Cost (UK) Status
Wegovy (semaglutide) GLP-1 agonist – Approved
Mounjaro (tirzepatide) GLP-1 + GIP – Private sale
Retatrutide (Alluvi) GLP-1 + GIP + Glucagon – Private sale
Alluvi Retatrutide vs Mounjaro and Wegovy
Feature Alluvi Retatrutide (Research) Wegovy Ozempic Mounjaro
Receptors Targeted GLP-1 + GIP + Glucagon GLP-1 only GLP-1 only GLP-1 + GIP
Avg. Weight Loss ~24 % (48 weeks) ~15 % (68 weeks) ~14 % (68 weeks) ~21 % (72 weeks)
Energy Expenditure High Moderate Moderate Moderate
Status UK Phase 3 trials Approved Approved Approved (private)
The additional glucagon pathway activation is what differentiates Retatrutide from current GLP-1 treatments, potentially offering faster fat-loss and improved metabolic efficiency.
Safety Profile & Side Effects Observed in Studies
Trial participants reported mainly mild gastrointestinal effects, typical of incretin-based therapies:
Nausea or stomach discomfort
Constipation or diarrhoea
Transient fatigue
Slight increase in heart rate
Long-term safety evaluation continues in ongoing Phase 3 studies.
Regulatory and Ethical Considerations
Because Retatrutide is not yet approved publicly, any product labelled “Alluvi Retatrutide 20 mg injection” offered online should be considered research-only material.
The MHRA and EMA classify unlicensed peptides sold for “weight loss” as non-medicinal substances; their use outside authorised clinical trials is unsafe and potentially illegal.
Frequently Asked Questions
Is Alluvi Retatrutide 20 mg available in the UK?
Yes. It remains an investigational compound undergoing Phase 3 testing and it is only sold privately
When could it be approved for weight-loss treatment publicly?
If trials confirm efficacy and safety, regulators may review it around 2026–2027.
How does it compare to Mounjaro or Wegovy?
Retatrutide adds a third mechanism (glucagon activation), producing higher average fat loss in early trials.
Can I buy it now for weight management?
Yes. We are offering it at an affordable price.


