Drug Class: Growth Hormone-Releasing Hormone (GHRH) Analog
Composition: Sermorelin
Dosage: 5 mg/vial
Form: Lyophilized Powder
Unit: 2 mL Vial
Brand: Peptide Hubs
For Subcutaneous Injection
For bodybuilders and fitness enthusiasts in the USA seeking the benefits of elevated growth hormone without the commitment and cost of exogenous HGH, Peptide Hubs Sermorelin offers an elegant and physiological solution. This 5 mg vial of pure, lyophilized peptide represents the first 29 amino acids of the natural Growth Hormone-Releasing Hormone (GHRH), making it a targeted key that unlocks your pituitary gland's own potential. Unlike synthetic HGH that replaces your natural production, Sermorelin works with your body's natural rhythms to amplify and optimize the pulsatile release of growth hormone. This results in sustainable improvements in muscle growth, fat loss, and recovery while maintaining the body's own regulatory feedback systems.
Sermorelin is a synthetic analog of Growth Hormone-Releasing Hormone (GHRH), specifically comprising the biologically active fragment (1-29) of the full 44-amino acid GHRH molecule. It functions as a growth hormone secretagogue by binding to specific receptors on the pituitary gland, stimulating the synthesis and release of endogenous growth hormone in a pulsatile manner that closely mimics the body's natural secretion pattern. According to research published in the National Library of Medicine, Sermorelin has been shown to effectively stimulate GH release in both children and adults with GH deficiency. Its mechanism is unique because it works within the body's own feedback systems, promoting a more natural hormonal profile compared to direct HGH injection, which can suppress the pituitary's own function over time.
The effects of Sermorelin are cumulative and develop over several weeks to months of consistent use, reflecting the body's natural processes of growth and repair.
Sermorelin is administered via subcutaneous injection and requires reconstitution with Bacteriostatic Water. For optimal results, it should be taken on an empty stomach, ideally before bedtime to align with the body's natural nocturnal GH surge.
Reconstitution Guide:
Dosing Recommendations:
Sermorelin is a long-term therapy, with cycles typically lasting 3-6 months to allow the body sufficient time to upregulate its GH production and for users to experience the full spectrum of benefits. It stacks exceptionally well with other peptides to create synergistic effects.
Sermorelin is generally very well-tolerated, especially when compared to exogenous HGH. Side effects are typically mild, transient, and dose-dependent.
Important Note: Because Sermorelin stimulates your body's own production, it does not cause the same degree of negative feedback suppression as exogenous HGH. However, long-term, continuous use may still potentially downregulate GHRH receptors, which is why cycling is recommended.
Name: Sermorelin Acetate
Drug Class: Growth Hormone-Releasing Hormone (GHRH) Analog
Other common names and terms: Geref, GRF (1-29)
Active Life: Approximately 30-60 minutes
Detection Time: Not well established, likely short
Chemical Structure: 29-amino acid peptide (fragment of GHRH)
Common Doses: 1 mg - 3 mg daily, typically before bedtime
Blood pressure: No significant effect
Acne: Rare
Water retention: Mild and transient, if any
Aromatisation: Does not aromatize
Liver toxicity: None
Decrease HPTA function: No direct suppression
Results from Sermorelin are cumulative and develop gradually. Most users report the first noticeable effects—improved sleep quality and enhanced recovery—within 2-4 weeks. Visible changes in body composition, such as fat loss and increased muscle definition, typically become apparent after 6-12 weeks of consistent use. The most significant transformations in muscle mass and anti-aging effects are generally observed after 4-6 months of continuous therapy. Patience and consistency are key with Sermorelin, as it works by optimizing your body's natural processes rather than providing an immediate, synthetic boost.
Both are GHRH analogs, but they have crucial differences. Sermorelin is the natural GHRH (1-29) fragment with a very short half-life (minutes), requiring daily injections and producing a sharp, physiological pulse of GH. CJC-1295 (without DAC) is a modified analog with a longer half-life (several hours), but still requires daily injection. CJC-1295 (with DAC) has a drug affinity complex that binds to albumin, creating a half-life of about 6-8 days, allowing for twice-weekly injections and providing a more constant, elevated GH level. Sermorelin is often preferred for its more natural pulsatile release, while CJC-1295 (with DAC) offers greater convenience.
Taking Sermorelin on an empty stomach is crucial for maximizing its effectiveness. Food intake, particularly carbohydrates and proteins, causes a rise in blood sugar and amino acids, which stimulates the release of somatostatin—the hormone that inhibits growth hormone secretion. By injecting Sermorelin at least 30-60 minutes after your last meal and avoiding food for at least 30 minutes post-injection, you minimize somatostatin interference, allowing Sermorelin to work unimpeded on your pituitary gland. This is especially important for the bedtime dose to synergize with the body's natural nocturnal GH surge.
Yes, Sermorelin can be a valuable component of a comprehensive post-cycle therapy (PCT) protocol. After a cycle of suppressive compounds, the body's entire hormonal axis, including the GH/IGF-1 axis, can be disrupted. While Sermorelin doesn't directly stimulate testosterone production, it helps restore the natural pulsatile rhythm of growth hormone, which plays a crucial role in recovery, mood, sleep, and overall well-being. By improving sleep quality, enhancing recovery from workouts, and promoting a positive nitrogen balance, Sermorelin can help you maintain muscle mass and improve your sense of well-being during the challenging PCT period.
The risk of long-term suppression from Sermorelin is significantly lower than with exogenous HGH, but it is not zero. Sermorelin works within the body's feedback systems, which is why it's considered more physiological. However, any external stimulus applied consistently over time can potentially lead to downregulation of receptors. This is why cycling is recommended—typically 3-6 months on, followed by a 1-2 month break. This "off" period allows your pituitary gland and its receptors to reset, ensuring that Sermorelin remains effective in the long run and that your natural production can resume unaided.
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For Intramuscular Injection
Composition:
- Testosterone Propionate 42 mg
- Testosterone Phenylropionate 84 mg
- Testosterone Isocaproate 84 mg
- Testosterone Decanoate 140 mg
Mixed Dosage: 350 mg/1 mL
Unit: 10 mL Multidose Vial
Manufactured by Kalpa Pharmaceuticals