Recovery is where muscle growth actually happens — and your genetics determine how quickly and completely that process runs. IL-6, ACTN3, IGF1, GHSR, VDR, and ACE variants all shape different dimensions of post-exercise repair. The Precision Peptide Genetic Test analyzes all of them across 15 Muscle Growth insights spanning 14 pathways, 49 peptides, and 150+ genetic insights.

Multiple genes shape growth hormone response — from GHSR, which triggers GH pulses from the pituitary, to IGF1, which converts that signal into anabolic action, to ACTN3 and MSTN, which determine what the signal builds. The Precision Peptide Genetic Test analyzes all of them as part of 15 Muscle Growth insights across 14 pathways, 49 peptides, and 150+ genetic insights.

Struggling to build muscle despite consistent training? Genetics may be the missing variable. MSTN, ACTN3, IGF1, GHSR, and VDR variants all influence how your body responds to resistance training stimulus — from hypertrophy ceiling to anabolic signal strength to fiber architecture. The Precision Peptide Genetic Test analyzes 15 Muscle Growth insights across 14 pathways, 49 peptides, and 150+ genetic insights.

Your response to growth hormone axis pathways isn’t shaped by a single gene — it’s the product of at least eight interacting genetic factors, from GH release (GHSR) to fiber architecture (ACTN3) to recovery capacity (IL-6). The Precision Peptide Genetic Test analyzes all as part of 15 Muscle Growth insights across 14 pathways, 49 peptides, and 150+ genetic insights.

Vitamin D levels get all the attention — but VDR, the gene encoding the vitamin D receptor, determines whether those levels actually translate into muscle function. VDR variants influence protein synthesis, calcium handling, and satellite cell activity. The Precision Peptide Genetic Test analyzes VDR as one of 15 Muscle Growth insights across 14 pathways, 49 peptides, and 150+ genetic insights.