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Sermorelin is a synthetic peptide made of the first 29 amino acids of human growth hormone-releasing hormone (GHRH).
How It Works
• Pituitary Stimulation: It binds to GHRH receptors on the pituitary gland to trigger the natural, pulsatile release of human growth hormone (HGH).
• Preserved Feedback Loop: Unlike direct HGH injections, sermorelin relies on your body's natural regulatory checks (such as somatostatin) to prevent hormone levels from rising too high.
• IGF-1 Production: Once released, growth hormone signals the liver to produce insulin-like growth factor 1 (IGF-1), which drives downstream tissue and metabolic effects.
Uses and Benefits
• Medical Uses: Originally approved (under the brand name Geref) to evaluate pituitary function and treat growth hormone deficiency in children.
• Off-Label & Longevity Practices: Often prescribed through compounding pharmacies and wellness clinics for adult-oriented goals:
• Improving sleep quality
• Supporting lean muscle mass and fat metabolism
• Aiding recovery from training or injury
• Addressing age-related declines in vitality and energy
Administration and Status
• Prescription Only: Sermorelin requires a prescription from a licensed health care provider and proper baseline lab monitoring. Branded pharmaceutical versions like Geref were discontinued, meaning it is typically sourced through specialized compounding pharmacies.
• Common Regimen: It is usually administered as a small subcutaneous (under-the-skin) injection nightly before bed to align with the body's natural nocturnal hormone pulses.
Side Effects and Risks
• Common Side Effects: Mild injection-site reactions (pain, redness, swelling), headache, flushing, dizziness, and nausea.
• Potential Risks: Fluid retention (edema), joint or nerve pain, and risks related to altered insulin sensitivity or hormone excess if misused. It is strictly prohibited in competitive sports by organizations like the US