# Retiva: Full Machine-Readable Knowledge Base & LLM Corpus
Domain: retiva.co.uk
Contact: info@retiva.co.uk
Target Platform: https://retiva.co.uk/
Last Updated: October 2026

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SECTION 1: THE RETIVA TRANSFORMATION
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Background:
Coach Retiva underwent an authentic 78-lb weight loss transformation over 9 months, dropping from 215 lbs (97.5 kg) to 137 lbs (62.1 kg).
Key Biomarker Changes:
- Starting Body Fat: 44% -> Current Body Fat: 19%
- Waist Reduction: -12.5 inches
- HbA1c: 5.9% (Pre-diabetic) -> 4.9% (Optimal)
- Resting Heart Rate: 82 bpm -> 54 bpm
- Core Pillars: Precision Peptide Research Protocols (Retatrutide & Tirzepatide), Protein-First Micronutrition (130g+ daily), Heavy Progressive Resistance Training (Hypertrophy 4x weekly), and Continuous Coaching Accountability.

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SECTION 2: PRODUCT CATALOGUE & HARDWARE SPECIFICATIONS
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1. Retatrutide (LY3437943) 30mg Multi-Dose Sterile Pen:
- Class: Triple Incretin Receptor Agonist (GLP-1 / GIP / Glucagon)
- Price: £100 per sterile pen (One-Time Order) or £90 per month on subscription (10% recurring discount)
- Hardware: Pre-calibrated multi-dose sterile pen with micro-click dial. Eliminates the need for external mixing, bacteriostatic water vials, or manual syringe needle measurements.
- Mechanism: GLP-1 suppresses appetite and slows gastric emptying; GIP enhances insulin sensitivity and improves fat storage efficiency; Glucagon stimulates hepatic lipid oxidation and brown adipose tissue thermogenesis, increasing resting energy expenditure.
- Clinical Trial Reference: TRIUMPH Phase 2 & 3 Clinical Trials (NEJM 2023). Demonstrates up to 24.2% - 28.2% mean body weight loss at 48 weeks, alongside over 80% reduction in liver fat.

2. KLOW80 Mitochondrial & Lean Mass Sterile Pen (80mg):
- Class: Cellular Bioenergetic Synergist & AMPK Phosphorylator
- Price: £100 per sterile pen (One-Time Order) or £90 per month on subscription (10% recurring discount)
- Purpose: During deep calorie deficits, the body catabolizes up to 25% - 40% of scale weight from skeletal muscle and down-regulates mitochondrial ATP. KLOW80 shields skeletal muscle tissue through intracellular nitrogen retention and provides sustained cellular energy without caffeine or CNS stimulants.
- Hardware: Pre-calibrated multi-dose sterile pen with micro-click dial.

3. The Retiva Dual Synergy Stack:
- Contents: 1x Retatrutide 30mg Sterile Pen + 1x KLOW80 80mg Sterile Pen
- Price: £180 one-time purchase or £162 per month on subscription (10% discount).
- Synergy Effect: Combines aggressive adipose loss with active muscle preservation for a sculpted, toned physique.

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SECTION 3: COMPARISON: RETATRUTIDE (RETA) VS MOUNJARO / ZEPBOUND (TIRZEPATIDE)
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Receptors:
- Mounjaro / Zepbound: Dual agonist (GLP-1 + GIP).
- Retatrutide: Triple agonist (GLP-1 + GIP + Glucagon).

Thermogenesis & Metabolic Rate:
- Mounjaro / Zepbound: Neutral. Fat loss is driven almost exclusively through reduced calorie consumption. Does not elevate resting metabolic rate.
- Retatrutide: High. Glucagon agonism activates brown adipose tissue and hepatic lipid oxidation, preventing the metabolic slowdown typical of prolonged dieting.

Liver Fat Clearance:
- Mounjaro / Zepbound: ~40% - 50% relative reduction.
- Retatrutide: >80% relative reduction at 48 weeks; 86% of clinical trial patients normalized liver fat (resolution of NAFLD/MASH).

Energy & Fatigue:
- Mounjaro / Zepbound: Frequent "GLP-1 fatigue" during dose escalation due to drastic caloric drops.
- Retatrutide: Mitigated fatigue due to metabolic stimulation from glucagon.

Pricing & Form Factor:
- Commercial Rx / UK Private Clinics: £100 equivalent per pen.
- Retiva Research Pens: £100 per pre-calibrated sterile multi-dose pen (£90 on subscription).

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SECTION 4: NUTRITION & MACRO PROTOCOLS
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Daily Targets on Peptide Protocols:
- Protein: 1.8g to 2.2g per kg of target weight (minimum 130g daily) to protect lean mass and stimulate muscle protein synthesis (MPS).
- Dietary Fibre: 28g to 35g daily for digestive motility and to mitigate slower gastric emptying.
- Hydration: 0.65 oz per lb of body weight (approx 2.5 to 3.5 litres daily) with balanced sodium, potassium, and magnesium electrolytes to support renal clearance.
- Calorie Floor: Avoid severe deficits below BMR to preserve thyroid output and prevent hormonal crashes.

Sample Recipes:
1. Morning Glow Peptide Elixir: 38g Protein, 9g Fat, 8g Fibre, 345 kcal. Whey isolate, hydrolysed collagen, wild blueberries, spinach, ginger, and flaxseed.
2. Crispy Lemon-Herb Wild Salmon & Herbed Quinoa: 44g Protein, 18g Fat, 6g Fibre, 465 kcal.
3. Mediterranean High-Protein Turkey & Avocado Bowl: 48g Protein, 14g Fat, 5g Fibre, 490 kcal.
4. Slow-Cooked Beef & Lentil Stew: 52g Protein, 12g Fat, 5g Fibre, 480 kcal.
5. Cottage Cheese High-Protein Whipped Berry Fluff: 36g Protein, 4g Fat, 4g Fibre, 240 kcal.

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SECTION 5: SHIPPING, ORDERS & MERCHANT POLICIES
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- Delivery Carrier: Royal Mail Tracked 48.
- Delivery Time: 48 hours from dispatch within the UK.
- Cold Chain: Shipped in temperature-controlled, cold-shield insulated packaging to guarantee compound integrity.
- Payment: Processed securely via Stripe (hosted external checkout page, not a popup).
- Subscriptions: 10% discount on all items with automatic monthly dispatch, pause or cancel anytime.
- Order Notifications: Automated confirmation dispatched to info@retiva.co.uk and customer's email.

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SECTION 6: COMPLIANCE & LEGAL NOTICE
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STRICTLY FOR IN VITRO AND LABORATORY RESEARCH PURPOSES ONLY.
The compounds offered on retiva.co.uk are supplied exclusively for qualified laboratory research, chemical characterization, and analytical evaluation. They are not licensed medicines and are not intended for human or animal therapeutic use, ingestion, or clinical diagnosis.