Homocysteine
An amino-acid metabolite — elevated values indicate B-vitamin deficiency and are an independent cardiovascular risk marker.
Definition
Homocysteine is a methionine metabolite whose levels rise with deficiencies in B12, folate or B6, and with impaired methylation (MTHFR variants). Elevated homocysteine is an independent cardiovascular and cognitive-decline risk marker; correction is straightforward with methylated B-vitamin replacement, though whether that translates to reduced events is contested.
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Vitamin D25-hydroxy Vitamin D
A fat-soluble vitamin that functions more like a hormone — widely deficient, with broad effects on immune, bone and metabolic health.
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.