CAS 12629-01-5 · Somatropin · Human Growth Hormone · 191 Amino Acids
AnabolicFat MetabolismMuscle PreservationIGF-1 StimulationRecoveryBone Density10 IU / vial
Purity: 99.62%
Batch: SJZJB-0428
Tested by HPLC-UV-MS
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What it is
HGH (Human Growth Hormone / Somatropin) is a 191-amino acid peptide hormone naturally produced by the anterior pituitary gland. It is the primary driver of growth, cellular regeneration, and metabolic regulation in the human body.
Mechanism of action
Binds to GH receptors on target cells, triggering JAK2/STAT5 signaling pathways. Directly stimulates protein synthesis, lipolysis, and IGF-1 production in the liver. IGF-1 mediates many of GH's anabolic effects on muscle, bone, and connective tissue.
Research context
Extensively studied across multiple decades in the context of body composition, muscle preservation, fat metabolism, bone density, and recovery. One of the most researched peptide hormones in existence.
Research areas
AnabolicFat MetabolismMuscle PreservationIGF-1 StimulationRecoveryBone Density
⚠ For research purposes only. Not approved for human use by the FDA. Not for human consumption.
Research dosing reference
Starting dose
1–2 IU
Frequency
Once daily
Max studied
4 IU / day
Route
Subcutaneous
Protocol notes
Research protocols typically range from 1–4 IU daily. Lower doses (1–2 IU) studied for anti-aging and recovery. Higher doses (3–4 IU) for body composition changes.
Commonly observed side effects
Water retention, carpal tunnel symptoms, joint discomfort, and potential insulin resistance at higher doses — consistent with GH class compounds.
⚠ Dosing data sourced from published clinical literature. For research reference only.
Reconstitution protocol
01
Draw 1–2 mL of bacteriostatic water into a clean syringe.
02
Insert needle through stopper and angle toward the glass wall.
03
Slowly push water in along the side of the vial — never aim at the powder directly.
04
Swirl gently. Do NOT shake. HGH is fragile — shaking degrades the molecule.
05
Solution should be clear. Label with date and refrigerate immediately.
Bacteriostatic water volume
1–2 mL bacteriostatic water per 10 IU vial
Dose calculation referenceAt 10 IU in 1 mL: each 0.1 mL = 1 IU · At 10 IU in 2 mL: each 0.1 mL = 0.5 IU
⚠ Always use bacteriostatic water for multi-dose vials. Never shake — always swirl gently.
Dose Calculator
Enter how much bacteriostatic water you added to your 10IU vial and your target dose. The calculator shows exactly how many units to draw on a standard U-100 insulin syringe.
10 IU
Draw to this mark on your syringe
— units
— mL
Concentration: — IU/mL
⚠ For research reference only. Calculations assume a standard U-100 insulin syringe (100 units = 1 mL). Always verify your measurements.
Injection protocol
01
Draw target dose carefully into insulin syringe.
02
Administer in the morning fasted or post-training for optimal GH pulse alignment.
03
Clean injection site with alcohol swab. Allow to dry.
04
Pinch skin, insert at 45°, slowly and steadily inject.
05
Remove, apply light pressure, dispose safely. Log time, dose, and site.
Recommended needle
29–31 gauge insulin syringe
Injection sites
Abdomen preferred. Rotate sites daily.
⚠ Always rotate injection sites. Never reuse syringes. Dispose of sharps properly.
Storage conditions
Unreconstituted
2–8°C refrigerated · Up to 24 months — never freeze
Reconstituted
2–8°C refrigerated · Use within 14–21 days
Stability notes
HGH is one of the most fragile peptides — never shake the vial. Always swirl. Keep consistently refrigerated. Even brief exposure to high temperatures can degrade potency.
⚠ Keep away from children. Do not use if solution appears cloudy or contains particulates.
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