# HGH (Human Growth Hormone)

> Human Growth Hormone (HGH), also known by its pharmaceutical name somatropin, is a recombinant version of the growth hormone naturally produced by the pituitary gland. It is approved for treatment of growth hormone deficiency and certain wasting conditions, and is widely studied and used off-label in contexts related to body composition, recovery, and anti-aging research. HGH influences growth, cell reproduction, and metabolism throughout the body, largely through stimulation of insulin-like growth factor 1 (IGF-1) production in the liver. It is one of the most extensively studied peptide hormones, with decades of clinical and research data available. Long-term use outside approved medical indications carries risks that are still being studied.

- URL: https://www.lifeconverted.com/peptides/hgh
- Also known as: Somatropin
- Primary category: Growth Hormone
- Effectiveness rank: #13 in Weight Management; #10 in Muscle & Performance; #1 in Growth Hormone
- Evidence level: Well studied
- Route: Subcutaneous (Intramuscular injection is also used in some clinical settings, though subcutaneous is more common for daily dosing.)
- Dose range: 2-8 IU
- Dose tiers: low 2 IU; moderate 4 IU; high 8 IU
- Half-life: Approximately 2-4 hours for exogenous recombinant HGH, though downstream IGF-1 effects persist much longer
- Timing: ~30 min before bed, empty stomach
- Cycle: 3-6 months on, 1-2 months off (Clinical use for deficiency is often continuous under medical supervision; research/off-label use commonly follows extended cycling patterns.)
- Storage: Store lyophilized powder refrigerated (2-8°C); reconstituted solution must be refrigerated and used within the manufacturer's specified window, typically 2-3 weeks.

## Mechanism of action

HGH binds growth hormone receptors on liver and other tissue cells, stimulating production of insulin-like growth factor 1 (IGF-1), which mediates many of its anabolic and growth-promoting effects. It also has direct metabolic actions, including promoting lipolysis and influencing glucose metabolism. These combined direct and IGF-1-mediated pathways are thought to underlie its studied effects on tissue growth, body composition, and recovery.

## Reported benefits

- Studied for growth hormone deficiency treatment
- Investigated for body composition changes, including fat reduction and lean mass support
- Explored for recovery and tissue repair support
- Researched for bone density support
- Studied in anti-aging research for skin and cellular effects

## Reported side effects

- Joint pain and swelling
- Fluid retention
- Insulin resistance and elevated blood glucose
- Carpal tunnel-like nerve symptoms
- Potential for organ growth with prolonged excess use

## Common protocols

- 4 IU subcutaneous once daily, 5 days on / 2 days off, for body composition research
- 2 IU subcutaneous daily for GH deficiency replacement under medical supervision

## Stacking notes

Often discussed alongside GHRP/GHRH secretagogues or insulin management strategies in research contexts due to its glucose-elevating effects.

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Educational information only, not medical advice. Full disclaimer: https://www.lifeconverted.com/disclaimer