Why Does Aromatase Vary by Genetics? The CYP19A1 Explanation
Aromatase activity varies between men because CYP19A1 — the gene encoding aromatase — is polymorphic. Different CYP19A1 variants alter how the enzyme is expressed and how efficiently it converts testosterone to estradiol. The Precision Peptide Genetic Test analyzes CYP19A1 as part of 14 pathways and 150+ genetic insights across 49 peptides.
Can Genetic Testing Predict TRT Response? What It Actually Tells You
Not exactly — but the answer matters. The Precision Peptide Genetic Test doesn't predict whether a specific androgen protocol will work. It maps six biological variables that determine how testosterone behaves in your body: SHBG, CYP19A1, AR, SRD5A2, LHCGR, and CYP17A1. Part of 14 pathways and 150+ genetic insights, that map is the most actionable starting point available.
What Is the Reproductive Health Pathway in Genetic Testing?
In the Precision Peptide Genetic Test, the Reproductive Health pathway delivers 6 insights across genes governing testosterone bioavailability, estrogen conversion, androgen receptor sensitivity, DHT production, and HPTA axis function. Part of 14 pathways, 49 peptides, and 150+ genetic insights, these 6 insights map male hormone balance as a connected genetic system.
How Does Genetics Affect Estrogen in Men? A Gene-by-Gene Guide
Genetics shapes estrogen in men through four pathways: how much testosterone converts to estradiol (CYP19A1), how efficiently it clears (COMT, MTHFR), how sensitively tissues respond (ESR1), and how much substrate is available (SHBG, SRD5A2). The Precision Peptide Genetic Test maps all these variables across 14 pathways and 150+ genetic insights.
MTHFR and Methylation: How They Shape Male Hormone Optimization
The Precision Peptide Genetic Test analyzes MTHFR C677T and A1298C — the variants that determine your methylation capacity and its downstream effects on estrogen clearance, homocysteine levels, and hormone metabolism. Part of 14 pathways and 150+ genetic insights across 49 peptides, MTHFR is the genetic variable connecting methylation to the male hormone system.
Does SHBG Genetics Affect TRT? What Providers Should Know
Yes — SHBG genetics directly affect how free testosterone responds to androgen-pathway protocols. The Precision Peptide Genetic Test analyzes SHBG variants as part of 14 pathways and 150+ genetic insights across 49 peptides, giving providers the genetic context to understand why the same protocol produces different free testosterone outcomes in different men.
What Genes Affect Testosterone Levels? The Complete Genetic Guide
The Precision Peptide Genetic Test analyzes six Reproductive Health genes that directly influence testosterone levels, conversion, and signaling — including SHBG, CYP19A1, AR, SRD5A2, LHCGR, and CYP17A1. Part of 14 pathways and 150+ genetic insights across 49 peptides, these variants explain why testosterone behaves differently in different men.
Why TRT Works for Some Men and Not Others: The Genetic Answer
The Precision Peptide Genetic Test analyzes 6 Reproductive Health insights that explain why androgen-pathway protocols produce different outcomes for different men. SHBG, CYP19A1, AR, SRD5A2, LHCGR, and CYP17A1 each shape how testosterone is bound, converted, sensed, and signaled — as part of 14 pathways and 150+ genetic insights across 49 peptides.
DHEA and Pregnenolone Pathway Genetics: What Your DNA Reveals
The Precision Peptide Genetic Test analyzes CYP17A1 and related variants — the genes governing DHEA and pregnenolone synthesis in your adrenal androgen pathway. Part of 14 pathways and 150+ genetic insights across 49 peptides, your upstream steroid pathway genetics explain why the same hormonal support strategies produce different results across different men.
SRD5A2 and 5-Alpha Reductase Genetics: DHT Conversion in Men
The Precision Peptide Genetic Test analyzes SRD5A2 — the gene controlling 5-alpha reductase, the enzyme that converts testosterone into DHT. Part of 14 pathways and 150+ genetic insights across 49 peptides, your SRD5A2 variants determine how much testosterone is routed toward the androgen pathway's most potent signaling molecule.
HPTA Axis Genetics: LH, FSH, and Fertility Preservation in Men
The Precision Peptide Genetic Test analyzes LH and FSH receptor variants — the genes governing how sensitively your HPTA axis signals testosterone production and sperm health. Part of 14 pathways and 150+ genetic insights across 49 peptides, your HPTA genetics help explain why fertility preservation strategies matter differently for different men on androgen-pathway protocols.
Androgen Receptor CAG Repeats: Sensitivity Explained
The Precision Peptide Genetic Test analyzes AR CAG repeats — the genetic variable that determines how sensitively your androgen receptor responds to testosterone. Part of 14 pathways and 150+ genetic insights across 49 peptides, CAG repeat length helps explain why two men with identical testosterone levels can have completely different androgen responses.
CYP19A1 (Aromatase) and Estrogen Conversion in Men
The Precision Peptide Genetic Test analyzes CYP19A1 — the aromatase gene that controls how much testosterone your body converts to estrogen. Part of 14 pathways and 150+ genetic insights across 49 peptides, your CYP19A1 variants help explain why estrogen levels vary between men on the same androgen-pathway protocol.