
HGH 191AA (10IU Vial)10IU
Explore the format, calculations, and schedules reported for this compound.
Back to peptides
HGH 191AA (10IU Vial), explained simply
HGH 191AA refers to somatropin, a recombinant form of human growth hormone.
Research area
GH deficiency, body composition and IGF-1 signalling
How it works
Growth hormone acts at its own receptors and stimulates IGF-1 production, affecting metabolism and tissue growth.
Why it matters
Comparing studies in documented deficiency with use in healthy adults shows why outcomes cannot simply be transferred between groups.
What has been observed
Changes in lean and fat mass have been reported in studied settings, but in healthy people these do not necessarily mean greater strength or performance.
Effects and points to consider
Benefits and risks vary by indication and population. Somatropin requires clinical supervision, and the reported figures are not prescriptive.
Reported data
Doses and cycles are presented for information and education only; they are not prescriptions or medical advice.
Reported vial strength and reconstitution
| Vial contents | 10 IU / 3.33 mg HGH 191AA |
|---|---|
| Final volume | 3 mL |
| Concentration | 1.11 mg/mL |
| One U-100 unit | 11.1 mcg in 0.01 mL |
Standard / Gradual Titration (3 mL = ~1.11 mg/mL)
| Week | Daily Dose (mcg) | Units (per injection) (mL) |
|---|---|---|
| Week 1 | 200 mcg | 18 units (0.18 mL) |
| Week 2 | 300 mcg | 27 units (0.27 mL) |
| Week 3 | 400 mcg | 36 units (0.36 mL) |
| Week 4 | 500 mcg | 45 units (0.45 mL) |
| Week 5 | 600 mcg | 54 units (0.54 mL) |
| Week 6 | 700 mcg | 63 units (0.63 mL) |
| Week 7 | 800 mcg | 72 units (0.72 mL) |
| Week 8 | 900 mcg | 81 units (0.81 mL) |
Extended 12-Week Protocol (Optional)
| Week | Daily Dose (mcg) | Units (per injection) (mL) |
|---|---|---|
| Week 9 | 1000 mcg | 90 units (0.90 mL) |
| Week 10 | 1100 mcg | 99 units (0.99 mL) |
| Week 11 | 1200 mcg | 108 units (1.08 mL) |
| Week 12 | 1300 mcg | 117 units (1.17 mL) |
Supplies needed


Sterile alcohol swabs
Scientific references
Links reported by the source and selected by type. Their presence does not validate this page’s dosage data.