Adult reviewing how genetic testing can improve sexual wellness — PlexusDx Precision Peptide Genetic Test

Can Genetic Testing Improve Sexual Wellness? What the Evidence Says

Genetic testing doesn't treat sexual dysfunction — it maps the biological terrain that every treatment decision operates within. The Precision Peptide Genetic Test delivers 6 Sexual Health insights across 14 pathways, 49 peptides, and 150+ genetic insights, giving providers the upstream biological context that bloodwork alone cannot supply — and changing the clinical conversation before any protocol begins.

Healthcare professional explaining the sexual health pathway in genetic testing — PlexusDx Precision Peptide Genetic Test

What Is the Sexual Health Pathway in Genetic Testing?

In the Precision Peptide Genetic Test, the Sexual Health pathway delivers 6 insights across the genes governing central arousal, vascular sexual response, desire, bonding, and circadian sexual timing. Part of 14 pathways, 49 peptides, and 150+ genetic insights, these 6 variants map sexual biology as a connected system — not a checklist of isolated traits.

Clinician explaining why PDE5 medication response varies by genetics — PlexusDx Precision Peptide Genetic Test

Why Do PDE5 Medications Work Differently? The Genetic Explanation

PDE5 pathway support compounds work differently for different men because the upstream signal they amplify — eNOS-derived nitric oxide — is genetically variable. NOS3 genotype sets the vascular floor. The Precision Peptide Genetic Test maps this and other pathway variables across 14 pathways, 49 peptides, and 150+ genetic insights, explaining the response variability that dosing alone cannot.

Adult reviewing how genetics — DRD2, OXTR, MC4R, MTNR1B — affects libido — PlexusDx Precision Peptide Genetic Test

How Does Genetics Affect Libido? What the Research Reveals

Libido has a genetic architecture — DRD2 receptor density, OXTR bonding sensitivity, MTNR1B circadian timing, and MC4R central arousal signaling all shape sexual desire at the neurochemical level. The Precision Peptide Genetic Test maps these variables as part of 14 pathways, 49 peptides, and 150+ genetic insights, explaining the biology of desire that testosterone panels miss.

Adult reviewing how eNOS NOS3 genetics affects sexual response — PlexusDx Precision Peptide Genetic Test

Does eNOS Genetics Affect Sexual Response? What the Research Shows

Yes — eNOS genetics directly shapes the nitric oxide foundation that vascular sexual response is built on. NOS3 variants determine how much NO your endothelium produces per arousal signal. The Precision Peptide Genetic Test analyzes eNOS variants as part of 14 pathways, 49 peptides, and 150+ genetic insights, answering the question bloodwork alone cannot.

Healthcare professional explaining the genes that affect erectile function — PlexusDx Precision Peptide Genetic Test

What Genes Affect Erectile Function? A Complete Genetic Guide

Erectile function depends on multiple gene-governed systems — nitric oxide production, central arousal signaling, dopamine-driven desire, and cGMP preservation. The Precision Peptide Genetic Test maps the key variants across 14 pathways, 49 peptides, and 150+ genetic insights, identifying the genetic architecture that testosterone panels and vascular tests alone cannot reveal.

Adult reviewing the genetic variables that shape sexual wellness — PlexusDx Precision Peptide Genetic Test

How Your Genes Shape Sexual Wellness: A Complete Genetic Guide

Sexual wellness has a genetic architecture — six biological variables that determine how your body produces arousal, routes blood flow, generates desire, and responds to intimacy. The Precision Peptide Genetic Test maps all six as part of 14 pathways, 49 peptides, and 150+ genetic insights, answering the question that hormone panels and bloodwork alone cannot.

Clinician discussing vasoactive pathway genetics for sexual health — PlexusDx Precision Peptide Genetic Test

Vasoactive Pathway Genetics for Sexual Health

The vasoactive pathway governs genital blood flow through multiple parallel mechanisms — nitric oxide, prostaglandin signaling, and alpha-adrenergic tone — each with its own genetic variable. The Precision Peptide Genetic Test maps key vasoactive pathway variants as part of 14 pathways, 49 peptides, and 150+ genetic insights, revealing the full vascular architecture that sexual arousal depends on.

Adult reviewing the melanocortin pathway and central sexual response genetics — PlexusDx Precision Peptide Genetic Test

The Melanocortin Pathway: Genetics of Central Sexual Response

Central sexual arousal — the brain-driven signal that initiates the entire sexual response cascade — runs through the melanocortin pathway and its primary receptor, MC4R. The Precision Peptide Genetic Test analyzes melanocortin pathway variants as part of 14 pathways, 49 peptides, and 150+ genetic insights, mapping the CNS architecture of arousal that vascular testing cannot reach.

Clinician explaining PDE5 pathway genetics and response variability — PlexusDx Precision Peptide Genetic Test

PDE5 Pathway Genetics: Why Response Varies Between Individuals

PDE5 pathway support works differently for different people — and genetics is one of the most direct explanations for that variability. The Precision Peptide Genetic Test maps upstream NOS3 and downstream pathway variables as part of 14 pathways, 49 peptides, and 150+ genetic insights, explaining the vascular dimension of differential response.

Adult reviewing OXTR oxytocin receptor genetics and sexual health — PlexusDx Precision Peptide Genetic Test

OXTR Oxytocin Receptor Genetics and Sexual Health

OXTR encodes the oxytocin receptor that governs bonding, arousal facilitation, and the neurochemistry of intimacy in both men and women. The Precision Peptide Genetic Test analyzes OXTR variants as part of 14 pathways, 49 peptides, and 150+ genetic insights — mapping the social bonding dimension of sexual health that hormone panels cannot measure.

Adult reviewing DRD2 dopamine receptor and desire pathway genetics — PlexusDx Precision Peptide Genetic Test

DRD2 Dopamine Receptor and Desire Pathways: What Your Genes Reveal

DRD2 encodes the D2 dopamine receptor that governs the motivation, anticipation, and reward dimensions of sexual desire. The Precision Peptide Genetic Test analyzes DRD2 variants as part of 14 pathways, 49 peptides, and 150+ genetic insights — mapping the neurochemical foundation of sexual drive that no testosterone panel captures.

Adult reviewing MTNR1B circadian and sexual function genetics — PlexusDx Precision Peptide Genetic Test

MTNR1B and Circadian Sexual Function: What Your Genes Reveal

MTNR1B encodes the melatonin receptor that governs circadian regulation of testosterone, autonomic tone, and the timing of sexual function. The Precision Peptide Genetic Test analyzes MTNR1B variants as part of 14 pathways, 49 peptides, and 150+ genetic insights — mapping the chronobiological dimension of sexual health that no blood test captures.

Healthcare professional explaining eNOS NOS3 and nitric oxide genetics — PlexusDx Precision Peptide Genetic Test

eNOS (NOS3) and Nitric Oxide Genetics: What Your DNA Reveals

eNOS — the endothelial nitric oxide synthase enzyme encoded by NOS3 — is the genetic starting point of the vascular cascade that sexual arousal depends on. The Precision Peptide Genetic Test analyzes NOS3 variants as part of 14 pathways, 49 peptides, and 150+ genetic insights, mapping the upstream NO signal before it reaches the PDE5 pathway.

Clinician reviewing sexual health genetic testing results — PlexusDx Precision Peptide Genetic Test, 6 pathway insights

Complete Guide to Genetic Sexual Health Testing: 6 Pathway Insights

The Precision Peptide Genetic Test analyzes 6 Sexual Health insights covering the four systems behind sexual response — vascular (eNOS, PDE5), dopamine (DRD2), bonding (OXTR), and circadian (MTNR1B) — within 14 pathways, 49 peptides, and 150+ genetic insights. This pillar breaks down what each gene reveals and why sexual health is a multi-system problem.