Testosterone
The primary male androgen — measured as total and free fractions. Low levels in men drive the TRT decision; in women, context is everything.
Definition
Testosterone is produced by the testes in men and in smaller amounts by the ovaries and adrenals in women. Blood measurement includes total testosterone (bound + free) and free testosterone (bioavailable fraction). Reference ranges are age and sex-specific. Peptide therapy does not replace TRT; members with diagnosed hypogonadism work with a dedicated hormone-therapy clinician, while peptides may support adjacent goals.
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SHBGSex Hormone-Binding Globulin
A hepatic protein that binds testosterone and estradiol — affects how much hormone is bioavailable and how lab values are interpreted.
BiomarkerDHEA-SDehydroepiandrosterone Sulfate
An adrenal steroid that declines steadily with age — a sensitive marker of adrenal-reserve capacity and biological-age metrics.
BiomarkerBiomarker
A measurable substance in blood, tissue or urine that reflects a biological state — the inputs your clinician uses to choose the right protocol.
$149 panel.
A clinician reads it in 24 hours.
Order the Peptide Readiness Panel, draw at a Quest or LabCorp near you, and your clinician sends back a matched protocol with a confidence score.