Retatrutide Price Comparison

Live prices from 29 SA suppliers, from R355.00, compared side by side so you never overpay.

GLP-1 & metabolic research Prices checked
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Best Price R385.00
Average R716.25
Highest R1,350.00
You Could Save 71%
4 results
Best Price
Save 71%
White Rabbit Labs logo

Retatrutide

In Stock 5mg Lab Tested
R385.00
+ R120.00 delivery
BioHack Peptides logo
★ 4.9
BioHack Peptides

Retatrutide

R450.00
In Stock 5mg Lab Tested
Save 67% FREE over R3,000
Kynex Bioscience logo

Retatrutide 5mg

R680.00
In Stock 5mg Lab Tested
Save 50% FREE over R2,200
Biolabs Peptides logo

Retatrutide

R1,350.00
In Stock 5mg Lab Tested Pen
+ R185.00 delivery

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Retatrutide Profile

Extensively Studied

Triple GLP-1/GIP/Glucagon Agonist | Weight Loss & Diabetes

Overview

Novel triple hormone receptor agonist targeting GLP-1, GIP, and glucagon receptors. Phase II trials demonstrated 24.2% weight loss at 48 weeks—the highest recorded for obesity medications.

Mechanism of Action

Activates GLP-1 for appetite suppression, GIP for insulin sensitivity, and glucagon for increased energy expenditure and hepatic fat oxidation.

Key Benefits

  • Superior weight loss (24.2% at 48 weeks)
  • Improved glycemic control (HbA1c reduction up to 2.16%)
  • Enhanced cardiovascular benefits
  • Hepatic fat reduction (up to 82%)
  • Triple mechanism addresses obesity through multiple pathways

Quick Stats

Typical Dose
0.5mg starting, titrate up to 8-12mg weekly
Frequency
Once weekly (same day each week)
Cycle Duration
Continuous therapy as prescribed
Storage
Reconstituted: 2-8°C, use within 28 days

Molecular Information

Molecular Weight
4,731.33 Da
Length
39 amino acids
Type
Triple GLP-1/GIP/glucagon agonist
Half-Life
~6 days

Amino Acid Sequence

One-letter: HUEGTFTSDVSSYLEGQAAKEFIAWLVRGRGPSSGAPPPS
His
1

Histidine

Position 1

Aib
2

Aminoisobutyric Acid

Position 2

Glu
3

Glutamic Acid

Position 3

Gly
4

Glycine

Position 4

Thr
5

Threonine

Position 5

Phe
6

Phenylalanine

Position 6

Thr
7

Threonine

Position 7

Ser
8

Serine

Position 8

Asp
9

Aspartic Acid

Position 9

Val
10

Valine

Position 10

Ser
11

Serine

Position 11

Ser
12

Serine

Position 12

Tyr
13

Tyrosine

Position 13

Leu
14

Leucine

Position 14

Glu
15

Glutamic Acid

Position 15

Gly
16

Glycine

Position 16

Gln
17

Glutamine

Position 17

Ala
18

Alanine

Position 18

Ala
19

Alanine

Position 19

Lys
20

Lysine

Position 20

Glu
21

Glutamic Acid

Position 21

Phe
22

Phenylalanine

Position 22

Ile
23

Isoleucine

Position 23

Ala
24

Alanine

Position 24

Trp
25

Tryptophan

Position 25

Leu
26

Leucine

Position 26

Val
27

Valine

Position 27

Arg
28

Arginine

Position 28

Gly
29

Glycine

Position 29

Arg
30

Arginine

Position 30

Gly
31

Glycine

Position 31

Pro
32

Proline

Position 32

Ser
33

Serine

Position 33

Ser
34

Serine

Position 34

Gly
35

Glycine

Position 35

Ala
36

Alanine

Position 36

Pro
37

Proline

Position 37

Pro
38

Proline

Position 38

Pro
39

Proline

Position 39

Ser
40

Serine

Position 40

N-terminus C-terminus
Hydrophobic
Polar
Positive (+)
Negative (-)
Modified

Modifications

C20 fatty acid conjugation Aib residues for DPP-4 resistance

Research Indications

The following information is derived from published scientific literature and is provided for educational and research reference purposes only. It does not constitute medical advice, diagnosis, or treatment recommendations. These peptides are not approved for human use and are sold exclusively for in-vitro laboratory research.

Superior Weight Reduction

Most Effective

Clinical trials show 17.5% weight loss at 24 weeks and 24.2% at 48 weeks.

Sustained Weight Management

Most Effective

Continuous weight loss with no plateau at 48 weeks suggests greater long-term potential.

Triple Mechanism

Most Effective

Addresses obesity through appetite suppression, energy expenditure, and metabolic efficiency.

Superior Glycemic Control

Most Effective

HbA1c reductions up to 2.16% with 82% achieving target levels below 6.5%.

Glucose-Dependent Regulation

Effective

Balanced glycemic control with minimal hypoglycemia risk.

Insulin Sensitivity

Effective

Marked improvements in sensitivity with potential for reduced exogenous insulin requirements.

Lipid Improvement

Effective

Non-HDL cholesterol reductions up to 26.9%, triglyceride reductions up to 40.6%.

Blood Pressure Optimization

Effective

Consistent decreases in systolic and diastolic blood pressure across trials.

Hepatic Fat Reduction

Most Effective

Up to 82% reduction in liver fat with normalization in 90% of participants.

Dosing Protocols

injectable

Weekly subcutaneous injection into abdomen, thigh, or upper arm with site rotation.

Goal Dose Frequency Route
Starting Dose (Week 1-4) 0.5mg Once weekly SubQ
Low Maintenance (Week 4-8) 1mg Once weekly SubQ
Escalation (Week 8-12) 2mg Once weekly SubQ
Moderate (Week 12-16) 4mg Once weekly SubQ
Advanced (Week 16-20) 8mg Once weekly SubQ
Maximum Efficacy (Week 20+) 12mg Once weekly SubQ

Key Tips

  • Once-weekly administration improves compliance
  • Extended half-life enables consistent hormone regulation
  • Minimal systemic burden compared to daily dosing
Materials Needed
Sterile bacteriostatic water for injection Lyophilized Retatrutide vial Insulin syringes (0.3-1mL capacity) Alcohol swabs Sharps disposal container
Steps
  1. 1 Allow vial to reach room temperature (15-20 minutes)
  2. 2 Clean vial top with alcohol swab and air dry completely
  3. 3 Add calculated bacteriostatic water slowly down vial side
  4. 4 Gently swirl in circular motions—avoid vigorous shaking
  5. 5 Allow full dissolution (2-3 minutes); solution should be clear and colorless
  6. 6 Store reconstituted solution refrigerated at 2-8°C for up to 28 days
  7. 7 Inject subcutaneously; rotate sites weekly

Peptide Interactions

Tirzepatide

Avoid

Do not combine with other dual/triple agonists—risk of severe hypoglycemia and excessive GI effects.

Semaglutide

Avoid

Do not combine—overlapping GLP-1 agonist mechanisms increase severe hypoglycemia risk.

Cagrilintide

Monitor

Both cause significant GI effects. Not recommended without specialist supervision.

Insulin

Monitor

May significantly reduce insulin requirements. Monitor blood glucose and adjust insulin doses accordingly.

Metformin

Compatible

Safe combination tested in clinical trials. Different mechanisms work complementarily for glucose control.

SGLT2 Inhibitors

Compatible

Clinical trials included SGLT2 inhibitors with no safety concerns.

BPC-157

Compatible

Safe combination; BPC-157 may provide GI protective benefits during retatrutide use.

Oral Contraceptives

Monitor

Space oral contraceptives by 1 hour before retatrutide due to delayed gastric emptying.

What to Expect

Week 1-2

Initial appetite suppression and mild GI effects as body adapts to triple hormone activation

Week 2-4

Noticeable food cravings reduction and portion size decrease; early weight loss (2-5%)

Week 4-8

Significant appetite control and steady weight loss (5-10%); improved glucose control

Week 8-16

Substantial weight reduction (10-18%) with enhanced energy expenditure

Week 16-24

Major weight loss milestone (15-22%) with cardiovascular benefits and liver fat reduction

Week 24-48

Maximum clinical efficacy (20-24.2%) with comprehensive metabolic improvements

Side Effects & Safety

Common Side Effects

  • Gastrointestinal effects (nausea, vomiting, diarrhea)—typically mild to moderate
  • Heart rate increases—common especially in first 24 weeks
  • Appetite suppression
  • Mild dehydration

Monitoring

  • Cardiovascular status (especially heart rate)
  • Blood glucose if diabetic
  • Weight loss rate
  • Signs of pancreatitis
  • Gastrointestinal tolerability

Stop Signs

  • Severe persistent nausea or vomiting preventing adequate nutrition
  • Signs of pancreatitis: severe abdominal pain radiating to back
  • Severe hypoglycemia symptoms: confusion, dizziness, sweating
  • Excessive weight loss (>3 lbs per week consistently or >25% total body weight)
  • Gallbladder problems: severe right upper abdominal pain

Contraindications

  • Personal or family history of medullary thyroid carcinoma
  • MEN2 syndrome
  • Severe renal impairment

Quality Checklist

Good Signs

  • Pharmaceutical-grade white powder with uniform texture
  • Proper cold chain maintenance (2-8°C refrigeration)
  • Clear, colorless reconstituted solution without particles
  • Stable extended half-life effects (consistent appetite suppression between doses)

Warning Signs

  • Source verification critical—counterfeit versions circulate due to investigational status

Bad Signs

  • Rapid tolerance or effectiveness loss suggests degraded or counterfeit product
  • Unusual side effect profile may indicate contamination

Research & References

Key References

  1. 2023

    Phase II Obesity Trial

    Landmark RCT in 338 participants showing dose-dependent weight loss; 12mg dose achieved 24.2% reduction—highest recorded for any obesity medication. NEJM.

  2. 2023

    Phase II Type 2 Diabetes Study

    Trial in 281 participants with type 2 diabetes: 16.9% weight loss and HbA1c reductions up to 2.16%. The Lancet.

  3. 2024

    MASLD Substudy

    Metabolic dysfunction-associated steatotic liver disease study: 82% liver fat reduction with normalization in >90% at highest doses. Nature Medicine.

  4. 2024

    Structural Insights into Triple Agonism

    Cryo-EM structures reveal simultaneous activation of GLP-1R, GIPR, and GCGR, explaining superior clinical efficacy. Cell Discovery.

Search PubMed for Retatrutide

Research Library

Retatrutide research & guides

Plain-English guides and study summaries from published literature.

View all 8
30mg vs 60mg Retatrutide: what the label actually means Guides 7 min

30mg vs 60mg Retatrutide: what the label actually means

A 60mg Retatrutide product contains twice the stated peptide quantity of a 30mg product, but that does not make it twice as effective or automatically better value. Here is how to read the numbers properly.

Read article
Retatrutide dosing: a minimum effective dose guide for research Guides 10 min

Retatrutide dosing: a minimum effective dose guide for research

A research-focused guide to Retatrutide dosing, covering triple agonist effects, slower titration, functional checkpoints and why 12 mg should not be treated as the default target.

Read article
Retatrutide Prices in South Africa: A Research Guide Beyond Weight Loss Guides 8 min

Retatrutide Prices in South Africa: A Research Guide Beyond Weight Loss

Retatrutide is an investigational GLP-1/GIP/glucagon receptor tri-agonist studied for weight management, glycaemic control, liver fat reduction and wider metabolic outcomes.

Read article
Retatrutide South Africa: More Than Weight Loss Guides 8 min

Retatrutide South Africa: More Than Weight Loss

Retatrutide is a triple GLP-1, GIP and glucagon receptor agonist being studied for weight management, glycaemic control, liver fat and wider metabolic health.

Read article
Microdosing Retatrutide: Evidence, Risks and Low-Dose Research Guides 7 min

Microdosing Retatrutide: Evidence, Risks and Low-Dose Research

Microdosing Retatrutide is widely discussed, but it is not an established clinical protocol. Here is what low-dose research actually supports, and where the evidence stops.

Read article
Retatrutide South Africa: What the Research Says Beyond Weight Loss Guides 8 min

Retatrutide South Africa: What the Research Says Beyond Weight Loss

Retatrutide is best known for major weight-loss results, but research also examines glucose control, liver fat and cardiometabolic markers. The evidence is promising, with important limits.

Read article

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