HGH 191AA is recombinant human growth hormone, identical to what the body naturally produces. It’s researched for its effects on body composition, fat metabolism, recovery, and tissue repair. It’s typically given once daily by subcutaneous injection.
Quick Facts
Reconstitution: Add 2.5 mL bacteriostatic water → ~1.33 mg/mL (~1333 mcg/mL)
Daily Range:
Conservative: 150–500 mcg/day
Advanced: 1000–2000 mcg/day
Easy Measuring: 1 unit = ~13.3 mcg on a U-100 insulin syringe
Storage: Freeze when dry; refrigerate after mixing; avoid freeze–thaw cycles
Dosing & Reconstitution Guide
Standard Gradual Titration (2.5 mL = 1.33 mg/mL)
A gentle 8-week ramp-up protocol with small weekly increases.
Week | Daily Dose | Syringe Units | Volume |
Week 1 | 200 mcg | 15 units | 0.15 mL |
Week 2 | 300 mcg | 22.5 units | 0.225 mL |
Week 3 | 400 mcg | 30 units | 0.30 mL |
Week 4 | 500 mcg | 37.5 units | 0.375 mL |
Week 5 | 600 mcg | 45 units | 0.45 mL |
Week 6 | 700 mcg | 52.5 units | 0.525 mL |
Week 7 | 800 mcg | 60 units | 0.60 mL |
Week 8 | 900 mcg | 67.5 units | 0.675 mL |
Optional: If your syringe has no half marks, round to the nearest whole unit.
Optional 12–16 Week Extension
Higher-dose research protocols (1000–1700 mcg/day) used in metabolic/performance studies. Higher dosing increases both effects and side-effect likelihood and requires closer monitoring.
Weeks | Daily Dose | Syringe Units | Volume |
Weeks 9–12 | 1000–1300 mcg | 75–97.5 units | 0.75–0.975 mL |
Weeks 13–16 (optional) | Up to 1700 mcg | Up to 127.5 units* | Up to 1.275 mL* |
*Doses over 100 units do not fit in one 1 mL syringe; split into two injections.
Reconstitution Steps
Draw 2.5 mL bacteriostatic water
Inject slowly down vial wall
Swirl gently (don’t shake)
Label with date
Refrigerate immediately; protect from light
For educational use only. Not medical advice. Not for human consumption.
Supplies Needed
HGH Vials (10 IU / ~3.33 mg each)
8 weeks: ~10 vials
12 weeks: ~19 vials
16 weeks: ~32 vials
Syringes
1 per day
Totals:
8 weeks → 56 syringes
12 weeks → 84 syringes
16 weeks → 112 syringes
Bacteriostatic Water
8 weeks → 25 mL
12 weeks → 47.5 mL
16 weeks → 80 mL
Alcohol Swabs
2 per day
Totals:8 weeks → 112
12 weeks → 168
16 weeks → 224
Protocol Overview
Goal: Support lean mass, fat loss, metabolic function, and recovery
Schedule: Daily evening subcutaneous injections for 8–12 weeks (optional to 16 weeks)
Dose Range:
Conservative: 150–500 mcg/day
Advanced: 1000–2000 mcg/day
Reconstitution: 2.5 mL per vial (1.33 mg/mL)
Storage: Lyophilized frozen; reconstituted refrigerated
Daily Dosing Protocol
Standard Approach
Start: 200 mcg/day
Increase: +100 mcg/week as tolerated
Weeks 4–8 Target: 400–900 mcg/day
Advanced Research Protocol
Weeks 9–12 Target: 1000–1300 mcg/day
Weeks 12–16 (optional): Up to ~1700 mcg/day
Timing
Best taken before bed to mimic natural GH release
Rotate injection sites consistently
Storage Instructions
Lyophilized
Store at −20 °C
Keep dry and protected from light
Reconstituted
Refrigerate at 2–8 °C
Stable for several weeks
Let vial warm to room temp before opening
Do not freeze after mixing
Important Notes
Use a new sterile syringe for every injection
Rotate sites (abdomen, thighs, upper arms) to prevent lipoatrophy
Inject slowly; pause before removing the needle
Track doses and any effects
HGH must be injected — oral forms are ineffective
How HGH Works
HGH 191AA is the same growth hormone your body naturally releases in pulses—especially at night. Research shows that when administered consistently:
Lean muscle mass tends to increase
Body fat, especially stubborn abdominal fat, tends to decrease
Metabolism becomes more active
Recovery and tissue repair improve
IGF-1 levels rise, amplifying many of these effects
Daily injections at bedtime are designed to match how your own GH is normally released.
Higher doses lead to stronger effects but also carry more side-effect risk, which is why gradual titration is standard.
Potential Benefits & Side Effects
Potential Benefits
Increased lean body mass
Reduced body fat
Improved recovery and repair
Better fat metabolism
Strength and body composition improvements (especially in GH-deficient adults)
Possible Side Effects
Mild injection-site irritation
Fluid retention or puffiness
Joint aches, especially at higher doses
Changes in blood sugar levels
Lipoatrophy if injection sites aren’t rotated
Benefits and side effects are dose-dependent — higher doses produce bigger changes but also more risk.
Lifestyle Tips to Maximize Results
Eat enough protein (1.6–2.2 g/kg/day)
Strength train with progressive overload
Add cardio for fat metabolism
Prioritize 7–9 hours of sleep
Manage stress (cortisol blunts GH signaling)
Stay hydrated
Injection Technique
Clean vial + skin
Pinch skin; inject at 45–90°
Inject slowly
Wait 2–3 seconds before removing
Rotate sites (abdomen, thighs, arms)
Dispose needle in sharps container
Disclaimer:
All peptide products sold on this website are for research, laboratory, and educational purposes only. They are not approved by the FDA or Health Canada, are not intended for human consumption, and should not be used for medical, cosmetic, or therapeutic purposes unless specifically prescribed by a licensed healthcare professional.
The information provided on this site is for informational and educational purposes only and does not constitute medical advice. Product descriptions, protocols, or references are not intended to diagnose, treat, cure, or prevent any disease. Always consult a qualified healthcare provider before beginning any new protocol, supplement, or treatment.
By purchasing from this website, you acknowledge and agree to use these products responsibly and in accordance with all applicable laws and guidelines.