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Fat Loss

Reta + Cagri Blend

Next gen triple agonist + amylin fat loss blend (Retatrutide / Cagrilintide)

Next gen triple agonist meets amylin — the emerging heavyweight fat loss stack.

Vial
15 mg
BAC Water
2 mL
Dose
750 mcg
Units on 1 mL
10
Timing
AM
Frequency
1x per week
Duration
Until goal weight
Note: Per dose: ~500mcg Retatrutide / 250mcg Cagrilintide
Also sold as

Research chemical vendors can't legally label products with the real name, so Reta + Cagri Blend often appears under coded SKUs. If you're shopping and see any of these, it's the same compound:

  • CagriSema
  • Reta+Cagri
  • 3R + Cagri

Codes shown are for identification only. Always verify third-party COAs before purchase.

Reta + Cagri Blend vial
Your draw
10 units · 750 mcg
00.0100.1200.2300.3400.4500.5600.6700.7800.8900.91001.0DRAW TO 10u100-UNIT · 1 mL SYRINGE10u
On a standard 100-unit / 1 mL insulin syringe.
What it actually is

Combines Retatrutide (GLP-1 + GIP + glucagon triple agonist) with Cagrilintide (amylin analog). Retatrutide already produces the largest weight loss of any incretin in trials; adding amylin extends satiety and may protect lean mass during aggressive cuts.

Highly potent — start at low doses and titrate. GI side effects and fatigue are more common than with sema/cagri.

Why people use it
  • Maximum effect fat loss protocols
  • Users who have plateaued on tirzepatide or reta alone
  • Improved satiety and glucose response vs. reta monotherapy
  • Weekly dosing convenience

Educational only · Not a vendor claim

How it works

Retatrutide triple agonizes GLP-1, GIP, and glucagon receptors — the glucagon arm adds direct fat oxidation on top of appetite control. Cagrilintide layers amylin driven satiety and lean mass preservation on top.

Health benefits
  • Largest observed fat loss potential of any current blend
  • Amylin arm helps preserve lean mass
  • Improved insulin sensitivity
  • Reduced hepatic fat
What you'll feel
  • Aggressive appetite suppression
  • Weight loss curves steeper than tirzepatide or sema
  • Improved metabolic markers within weeks
Pros
  • Cutting edge stack
  • Weekly dosing
  • Addresses multiple pathways simultaneously
Cons
  • Very potent — side effects more common
  • Long term human safety data still emerging
  • Requires careful titration
Side effects to know
  • Nausea, GI upset, fatigue
  • Increased heart rate in some users
  • Rare gallbladder issues at higher doses
Best suited for
Users plateaued on tirzepatideAggressive fat loss phases under supervisionMetabolic syndrome casesResearch users comfortable with newer compounds

Educational summary · Not medical advice · Discuss with a qualified clinician

What to expect

Typical timeline

General pattern for the Fat Loss category. Individual response varies.

  1. Week 1
    Titrate up slowly. Expect appetite drop, mild nausea, and possible constipation with GLP-1s. Hydrate and lean on fiber.
  2. Weeks 2–4
    Steady weight trend down (0.5–1.5 lb/week is healthy). Prioritize protein (~1 g/lb lean mass) to protect muscle.
  3. Weeks 4–8
    Body composition visibly shifts. Add resistance training if you haven't — muscle preservation is the whole game.
  4. Weeks 8+
    Re-evaluate dose. Consider a maintenance drop or a scheduled break to reset receptor sensitivity.
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The reconstitution math

  1. 1Reconstitute the 15 mg vial with 2 mL of bacteriostatic water. Tilt — don't shake.
  2. 2Concentration becomes 7,500 mcg/mL (7.5 mg/mL).
  3. 3For a 750 mcg dose, draw 0.100 mL — that's 10 units on a 1 mL insulin syringe.
  4. 4One vial gives you approximately 20 doses.

Reminder: 100 units on an insulin syringe = 1 mL. Always start at half the listed dose for the first week and rotate injection sites between arms, legs, abdomen, and glutes.

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