# Retiva (retiva.co.uk)

> Inspiring 78-lb weight loss transformation, GLP-1 & Retatrutide science protocols, mitochondrial synergists (KLOW80), sterile multi-dose pens, high-protein recipes, and body recomposition coaching.

Retiva is a UK-based research peptide platform, nutrition vault, and transformation resource centered around the 78-lb metabolic turnaround of Coach Retiva (from 215 lbs to 137 lbs, body fat down from 44% to 19%, HbA1c reversed from 5.9% to 4.9%).

## Core Products & Research Hardware

- [Retatrutide (LY3437943) 30mg Sterile Pen](https://retiva.co.uk/#products): Next-generation triple incretin receptor agonist (GLP-1 / GIP / Glucagon). £100 per sterile pen, or £90/month on subscription (-10% savings). Pre-calibrated micro-click dial for exact research titration.
- [KLOW80 Mitochondrial & Lean Mass Sterile Pen (80mg)](https://retiva.co.uk/#products): Targeted cellular AMPK activator and ATP mitochondrial catalyst engineered to shield skeletal muscle from deficit catabolism and eliminate peptide-induced fatigue. £100 per sterile pen, or £90/month on subscription.
- [The Retiva Dual Synergy Stack (Retatrutide + KLOW80)](https://retiva.co.uk/#products): Complete dual recomposition protocol combining thermogenic fat oxidation with intracellular muscle protection. £180 one-time, or £162/month on subscription (-10% savings).

## Scientific Protocols & Comparative Analysis

- [Retatrutide vs Mounjaro (Tirzepatide)](https://retiva.co.uk/#mounjaro-vs-retatrutide): Comprehensive comparative breakdown between dual incretin agonists (GLP-1/GIP) and triple agonists (GLP-1/GIP/Glucagon). Details brown adipose thermogenesis, resting energy expenditure, and over 80% hepatic liver fat reduction (MASH/NAFLD).
- [The Science of Sterile Click-Dial Pens](https://retiva.co.uk/#blog): Elimination of reconstitution guesswork, bacteriostatic water calculations, and syringe needle error through factory pre-calibrated multi-dose sterile pens.
- [Why Pair GLP-1/Triple Agonists with KLOW80](https://retiva.co.uk/#mounjaro-vs-retatrutide): How AMPK activation and intracellular nitrogen retention prevent the typical 25% to 40% skeletal muscle loss seen in aggressive caloric deficits.

## Nutrition, Recipes & Calculators

- [Peptide & Lean Mass Macro Calculator](https://retiva.co.uk/#calculator): Interactive tool for calculating daily protein requirements (1.8g to 2.2g/kg), hydration targets with electrolyte balance, and calorie floors to prevent metabolic slowdown.
- [High-Protein & GLP-1 Recipe Vault](https://retiva.co.uk/#recipes): Easily digestible, nutrient-dense meals specifically formulated for delayed gastric emptying (e.g., Morning Glow Peptide Elixir with 38g protein, Crispy Lemon-Herb Salmon & Herbed Quinoa with 44g protein, High-Protein Whipped Berry Fluff).

## Orders, Delivery & Merchant Details

- [Store & Direct Checkout](https://retiva.co.uk/#products): Full external Stripe checkout flow with 10% discount on recurring monthly subscriptions.
- Delivery Standard: Royal Mail Tracked 48 in temperature-controlled, cold-shield insulated packaging. Dispatched within 24 hours, delivered in 48 hours throughout the United Kingdom.
- Confirmation & Enquiries: Automated payment confirmation dispatched to `info@retiva.co.uk` and customer email.

## Compliance & Research Disclaimer

- Strictly For Research & Educational Purposes Only: All compounds provided by Retiva are intended exclusively for in vitro and research purposes. Not intended for human therapeutic consumption or diagnostic use without licensed medical oversight.

## Comprehensive Full Documentation

- [Full LLMs Documentation](https://retiva.co.uk/llms-full.txt): Complete in-depth text including full clinical trial summaries (TRIUMPH, SURMOUNT), recipe ingredient breakdowns, macro calculations, and extensive FAQ library.