Growth Hormone - Somatropin

Growth Hormone Muscle Growth Fat Loss Recovery Anti-Aging Skin Health IGF-1 Performance

2 IU - Daily (5 - 7 Days Week)

SubQ

Starting from

R2,200

3 suppliers available - see pricing tab below

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Dosage

2 IU - Daily (5 - 7 Days Week)

Administration

SubQ

Category

Growth Hormone

Overview

Somatropin is recombinant human growth hormone (rHGH), a 191-amino-acid polypeptide identical in sequence and structure to the growth hormone naturally produced by the human pituitary gland. Manufactured via recombinant DNA technology in E. coli or mammalian cell lines, somatropin provides exogenous GH directly rather than stimulating endogenous release like GHRH analogs or GHRPs. It is the most potent and direct GH-elevating compound available and is the gold standard for research into growth hormone effects on muscle, fat metabolism, recovery, and aging. Somatropin is the active ingredient in pharmaceutical products such as Genotropin, Humatrope, Norditropin, Saizen, and Omnitrope.

Mechanism of Action

Somatropin binds directly to growth hormone receptors (GHR) located on cells throughout the body, particularly in the liver, muscle, bone, and adipose tissue. Receptor binding triggers the JAK2/STAT5 signaling cascade, producing two major downstream effects: direct cellular actions on target tissues, and stimulation of IGF-1 production primarily in the liver. IGF-1 then mediates many of the anabolic and growth-promoting effects attributed to GH, including protein synthesis, cellular proliferation, and tissue repair. GH itself drives lipolysis (fat breakdown), increases hepatic glucose output, and supports collagen synthesis. Unlike GHRH analogs that work through the pituitary, somatropin bypasses the entire HPG axis and delivers a direct, dose-dependent GH signal — making it more potent but also more disruptive to natural feedback loops.

Key Benefits

Direct elevation of growth hormone levels independent of pituitary function
Significant increase in IGF-1 levels for systemic anabolic effects
Promotes lean muscle development and protein synthesis
Strong lipolytic effects, particularly on visceral adipose tissue
Accelerates recovery from training and injury
Supports collagen synthesis for skin, joints, and connective tissue
Improves sleep quality and depth
Enhances bone mineral density over extended use
Supports immune function and cellular repair
Most potent and predictable GH-elevating compound available

Side Effects & Safety

Injection site redness, swelling, or irritation
Water retention and edema, particularly in early weeks
Carpal tunnel syndrome and numbness or tingling in extremities
Joint pain and muscle aches
Insulin resistance and elevated blood glucose
Increased risk of type 2 diabetes with prolonged high-dose use
Possible thyroid suppression requiring monitoring
Suppression of natural GH production through negative feedback
Potential acromegalic changes (jaw, hands, feet) with long-term high doses
Theoretical concerns regarding cancer risk via IGF-1 pathway activation
Not approved for general human use without prescription
Long-term safety profile outside clinical use is well-documented but requires medical supervision
Consult a qualified medical professional before any use

Research & Stacking Notes

The gold standard for direct GH research; does not require pituitary stimulation Often paired with insulin in advanced research protocols (high risk, requires expert supervision) Stacks with PEG-MGF or IGF-1 LR3 for amplified muscle growth research Complements BPC-157 and TB-500 in recovery and tissue repair protocols Frequently combined with thyroid hormone (T3/T4) to manage HGH-induced thyroid suppression Pairs with testosterone in performance and body composition research Typical research dosing: 1-4 IU daily for general protocols; 4-10 IU for aggressive research Morning or split AM/PM dosing common; pre-bed dosing avoided as it suppresses natural GH pulse Best researched on an empty stomach or fasted to avoid blunting effects Reconstitute with bacteriostatic water; refrigerate after mixing Reconstituted somatropin remains stable for 2-3 weeks refrigerated Lyophilized vials stable for months when refrigerated unopened

Stacks Well With

CJC-1295 (DAC)

Growth Hormone

CJC-1295 (DAC) (Water not included) (10 vials - 2mg)

Growth Hormone

AOD-9604 (HGH Frag 176-191)

Growth Hormone

Select your preferred supplier and add to cart. Prices shown include VAT.

Supplier / Lab	Strength / Volume	Price	Availability
UP UPA Labs Australia	100iu 10 Vials	R2,200	In Stock
UP UPA Labs Australia	150iu 10 Vials	R2,700	In Stock
UP UPA Labs Australia	200iu 10 Vials	R3,400	In Stock

All peptides are for research purposes only. Not intended to diagnose, treat, cure, or prevent any disease. Always consult a qualified healthcare professional before use.