Under: Anti-Aging & Longevity
Best Peptides for IGF-1 Optimization
Optimizing insulin-like growth factor 1 levels for tissue repair and growth.
IGF-1 optimization focuses on supporting the body's natural production of insulin-like growth factor 1, a hormone critical for tissue repair, muscle development, and metabolic function. Research peptides like Sermorelin and CJC-1295 are being studied for their ability to stimulate growth hormone release through GHRH receptor activation, which subsequently increases circulating IGF-1 levels. These peptides work within the body's endogenous feedback systems rather than directly replacing hormones, making them subjects of ongoing research into growth factor optimization protocols.
Research peptides targeting IGF-1 optimization typically follow subcutaneous injection protocols, often administered in the evening or before sleep to align with natural GH secretion patterns. Protocols vary widely depending on the specific peptide, research goals, and individual factors, with studies generally examining dosing frequency from daily to several times weekly over extended periods.
Peptides Studied for IGF-1 Optimization
| Peptide | Evidence | Notes | Actions |
|---|---|---|---|
| CJC-1295 CJC-1295 is a synthetic analog of growth hormone-releasing hormone (GHRH) that stimulates the pituitary gland to produce more growth hormone. | high | — | |
| CJC-1295 CJC-1295 is a synthetic analog of growth hormone-releasing hormone (GHRH) that stimulates the pituitary gland to produce more growth hormone. | high | — | |
| Ipamorelin Ipamorelin is a selective growth hormone secretagogue that stimulates the release of growth hormone from the pituitary gland without significantly affecting cortisol or prolactin. | high | — | |
| Ipamorelin Ipamorelin is a selective growth hormone secretagogue that stimulates the release of growth hormone from the pituitary gland without significantly affecting cortisol or prolactin. | high | — | |
| MK-677 (Ibutamoren) MK-677, also known as Ibutamoren, is an orally active growth hormone secretagogue. Unlike peptides, it can be taken orally and has a long half-life, providing 24-hour GH elevation. | high | — | |
| MK-677 (Ibutamoren) MK-677, also known as Ibutamoren, is an orally active growth hormone secretagogue. Unlike peptides, it can be taken orally and has a long half-life, providing 24-hour GH elevation. | high | — | |
| Sermorelin Sermorelin is a synthetic analog of GHRH consisting of the first 29 amino acids of the natural hormone. It was previously FDA-approved for GH deficiency diagnosis and treatment in children. | high | — | |
| Sermorelin Sermorelin is a synthetic analog of GHRH consisting of the first 29 amino acids of the natural hormone. It was previously FDA-approved for GH deficiency diagnosis and treatment in children. | high | — |
CJC-1295 is a synthetic analog of growth hormone-releasing hormone (GHRH) that stimulates the pituitary gland to produce more growth hormone.
CJC-1295 is a synthetic analog of growth hormone-releasing hormone (GHRH) that stimulates the pituitary gland to produce more growth hormone.
Ipamorelin is a selective growth hormone secretagogue that stimulates the release of growth hormone from the pituitary gland without significantly affecting cortisol or prolactin.
Ipamorelin is a selective growth hormone secretagogue that stimulates the release of growth hormone from the pituitary gland without significantly affecting cortisol or prolactin.
MK-677, also known as Ibutamoren, is an orally active growth hormone secretagogue. Unlike peptides, it can be taken orally and has a long half-life, providing 24-hour GH elevation.
MK-677, also known as Ibutamoren, is an orally active growth hormone secretagogue. Unlike peptides, it can be taken orally and has a long half-life, providing 24-hour GH elevation.
Sermorelin is a synthetic analog of GHRH consisting of the first 29 amino acids of the natural hormone. It was previously FDA-approved for GH deficiency diagnosis and treatment in children.
Sermorelin is a synthetic analog of GHRH consisting of the first 29 amino acids of the natural hormone. It was previously FDA-approved for GH deficiency diagnosis and treatment in children.