Does sermorelin build muscle?
No study shows added muscle. In older men, DEXA measures of muscle and fat and muscle biopsies were unchanged after a course of nightly GHRH.
GHRH analogUpdated
Short answer
No study shows added muscle. In older men, DEXA measures of muscle and fat and muscle biopsies were unchanged after a course of nightly GHRH.[1]
The same trial did find that a few strength tests improved, so a strength signal exists but a muscle-size effect was not seen.[1]
A chart review of men on testosterone therapy who wanted more lean mass measured IGF-1, a surrogate marker, and not muscle.[2]
A recent review says evidence for physique or recomposition benefits from this class of compounds is uncertain.[3]
More questions on Sermorelin
More on Sermorelin
Sources
- 1Effects of single nightly injections of growth hormone-releasing hormone (GHRH 1-29) in healthy elderly men.Metabolism: clinical and experimental · 1997PMID 9005976Accessed 2 Oct 2026
- 2Growth Hormone Secretagogue Treatment in Hypogonadal Men Raises Serum Insulin-Like Growth Factor-1 Levels.American journal of men's health · 2017PMID 28830317Accessed 2 Oct 2026
- 3The emerging landscape of performance-enhancing peptides modulating GH-IGF1 axis: bridging the gap between clinical evidence and patient self-administration.Frontiers in endocrinology · 2026PMID 42395176Accessed 2 Oct 2026
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