Weight loss
Semaglutide
GLP-1 receptor agonist for effective weight management and appetite control.
Retatrutide
Triple-action GLP-1/GIP/Glucagon agonist - the most advanced weight loss peptide available.
Price range: £148,00 through £348,00
4.7 (9)
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Free Bacteriostatic Water included with every vial
≥98% Purity
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Metabolic Protocol - Retatrutide - 4 Weeks
Save £74,00
Fat loss + mitochondrial + gut repair - reta core. · 4 Weeks
Retatrutide
10mg lyophilised powder
£148,00
2× MOTS-c
10mg lyophilised powder
£104,00
3× BPC-157
5mg lyophilised powder
£117,00
Triple-receptor activity
Appetite regulation
Increased energy consumption
Visceral fat reduction research
Nerve tissue research
Angiogenesis research
Product Specifications
Dosage
1mg – 12mg weekly (titrated)
Cycle
12–24 weeks
Form
10mg lyophilised powder
Purity
≥98%
Molecular formula
C₂₃₅H₃₆₀N₅₀O₇₂
Storage
2–8°C refrigerated
What Is Retatrutide?
Retatrutide is a groundbreaking triple hormone receptor agonist that represents the cutting edge of metabolic peptide science. While semaglutide targets one receptor (GLP-1) and tirzepatide targets two (GLP-1 + GIP), retatrutide activates three: GLP-1, GIP, and the glucagon receptor – making it the most comprehensive metabolic peptide available today.
This three-pronged approach addresses weight management from every angle: appetite suppression, enhanced fat metabolism, and – uniquely among this class – direct stimulation of energy expenditure through glucagon receptor activation. Early clinical data suggests retatrutide may produce the most dramatic body weight reductions ever documented in a pharmaceutical weight loss trial.
The Triple-Agonist Mechanism Explained
Each of retatrutide’s three receptor targets contributes a distinct metabolic effect:
- GLP-1 receptor: Appetite suppression, delayed gastric emptying, and improved glycaemic control. This is the foundation shared with semaglutide and tirzepatide.
- GIP receptor: Enhanced fat metabolism in adipose tissue, improved nutrient partitioning, and amplification of GLP-1’s appetite effects. Shared with tirzepatide.
- Glucagon receptor (unique to retatrutide): Stimulates hepatic fat oxidation, increases resting energy expenditure (your body burns more calories at rest), and promotes lipolysis – the breakdown of stored fat for energy. This is the game-changing addition.
Phase 2 Clinical Results
Retatrutide’s Phase 2 trial results made headlines globally. At the highest dose (12mg), participants achieved an average body weight reduction of 24.2% at 48 weeks – the largest ever recorded in an obesity drug trial. To put this in perspective: a person weighing 100kg could expect to lose approximately 24kg over the course of a year.
Notably, the weight loss curve had not plateaued at 48 weeks, suggesting that longer treatment periods could yield even greater reductions. The glucagon component also showed preferential reduction of visceral (belly) fat – the metabolically dangerous fat surrounding internal organs.
Who Is Retatrutide Best For?
Retatrutide is positioned for individuals seeking maximum fat loss who want the most advanced peptide science available. It is particularly compelling for those who have already used GLP-1 or dual agonists and want to push further, or for individuals with significant visceral fat who would benefit from glucagon’s targeted fat-burning effects. Due to its potency, it is recommended for experienced peptide users comfortable with titration management.
Clinical References
Retatrutide, a GIP, GLP-1 and Glucagon Receptor Agonist, for People with Type 2 Diabetes
Lancet, 2023. PubMed →
Triple-Hormone-Receptor Agonist Retatrutide for Obesity – A Phase 2 Trial
N Engl J Med, 2023. PubMed →
Retatrutide Phase 2 Obesity Trial: 24% Mean Weight Loss at 48 Weeks
Diabetes Obes Metab, 2023. PubMed →
How to Use Your Peptides
A complete visual guide to preparing, reconstituting, injecting, and storing your peptides safely. Follow each step in order.
1
Preparation
Step 1
Supplies laid out
Gather your supplies: peptide vial, bacteriostatic water, syringes, alcohol swabs, cotton ball, and bandage.
Step 2
Remove / flip caps
Remove the plastic caps from both vials to expose the rubber stoppers.
Step 3
Swab the vial stopper
Wipe the top of each vial with an alcohol swab. Let air-dry.
2
Reconstitution
Step 4
Draw BAC water
Draw the required amount of bacteriostatic water into the syringe. Use our calculator if unsure.
Step 5
Inject water into vial
Inject the water slowly into the peptide vial, letting it run down the inside wall. Do not spray directly onto the powder.
Step 6
Swirl to dissolve
Gently swirl the vial until the powder dissolves. Do not shake.
Step 7
Check the solution
Check the solution: no undissolved particles, no bubbles, clear liquid. If not, wait and swirl again.
Step 8
Draw your dose
Draw your dose slowly from the reconstituted peptide vial.
3
Injection
Step 9
Remove air bubbles
Hold the syringe needle-up, flick to move air bubbles to the top, and push the plunger until a small drop appears.
Step 10
Choose injection site
Choose your injection site: belly fat around the navel or outer thigh. Rotate sites between injections.
Step 11
Clean the site
Clean the injection site with an alcohol swab.
Step 12
Pinch skin
Pinch a fold of skin at the injection site to lift the subcutaneous fatty tissue away from the muscle.
Step 13
Insert at 45°
Insert the needle at a 45° angle into the subcutaneous fatty tissue, usually approximately half the needle length. Do not inject into muscle. Inject slowly.
4
Aftercare, Storage & Disposal
Step 14
Cotton-ball press
Withdraw the needle and press a cotton ball gently on the site for a few seconds.
Step 15
Apply bandage
Apply a small bandage.
Step 16
Sharps disposal
Dispose of the needle in a sharps container.
Step 17
Storage
Store reconstituted peptides in the fridge (2-8 °C). Avoid freezing and direct sunlight. Use within 90 days.
Category-Specific Dosing Guides
Clinical trials used gradual dose escalation (titration), starting at lower doses before progressing to higher dose levels. If you are researching where to buy Retatrutide online, note that clinical studies did not start participants at the maximum dose. Instead, dosing increased gradually over time.
1
Reconstitution
To prepare the solution, add 2 mL of bacteriostatic water to the 10 mg vial to have 5 mg/mL.
2
Titration Protocol
The following schedule reflects a gradual dose-escalation approach:
- Weeks 1–4: 1 mg weekly
- Weeks 5–8: 2 mg weekly
- Weeks 9–12: 4 mg weekly
- Weeks 13–16: 8 mg weekly
- Weeks 17+: 12 mg weekly (if tolerated)
Gastrointestinal issues have been reported by some study subjects as they underwent the dosage changes. When symptoms are no longer tolerable, a longer duration can be allowed at the current dosage level prior to any increase.
3
Injection & Storage
Administer as a once-weekly subcutaneous injection. Change the injection site after each dose. Once diluted, keep the vial refrigerated at 2–8°C for up to 28 days.
Important Note
Retatrutide remains an investigational peptide. There have been clinical trials to test the effects of this drug on body weight, energy consumption, and metabolism; however, more studies are still needed. Please consult your physician if you encounter any symptoms during treatment.
4.7
9 reviews
Mikael S.
2026-03-30
The triple agonist is next level. Tried all three GLP-1 options from Morpho and this one gives the most consistent appetite control.
Verified Purchase
Clara B.
2026-03-12
Early days but promising. Only on 2mg dose and already noticing reduced hunger between meals. Purity tested well.
Verified Purchase
Pierre F.
2026-02-20
Shipping to France was fast, product arrived cold-packed. Professional operation. Will reorder when this vial runs out.
Verified Purchase
Sandra E.
2026-02-05
Started after plateauing on tirzepatide. The triple agonist broke through the plateau - down another 4kg in 6 weeks.
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Lukas H.
2026-01-20
Cutting edge peptide with real results. Morpho had it in stock when everyone else was sold out. Reliable supplier.
Verified Purchase
Bianca T.
2026-01-08
Some injection site redness initially but it settled. Effects on appetite are strong even at the lower dose. Impressed so far.
Verified Purchase
Erik J.
2025-12-22
Third generation weight loss peptide and it shows. Metabolic benefits feel broader than semaglutide alone. Great documentation on site.
Verified Purchase
Camille R.
2025-12-10
Ordered from Belgium, arrived in 2 days. Clean reconstitution. The titration guide was essential for getting started properly.
Verified Purchase
Matteo D.
2025-11-28
Very effective appetite suppression. Needed to adjust meal timing around the dose. Good product, will reorder.
Verified Purchase
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≥98% HPLC-verified purity
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Detailed dosing & reconstitution guides
Batch-specific COA on every product
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