How it works

One cheek swab. Results for life.

Every Marrow genetic report — from Gut Health to Peptide Response — is unlocked by the same simple at-home saliva test. Here's exactly how it works.

The process

  1. 01

    Your DNA kit arrives

    Order any Marrow genetic report and we ship a saliva collection kit — one tube, one funnel, one prepaid return mailer. No blood, no fasting, no clinic visit.

  2. 02

    Spit and seal

    Fill the tube with saliva to the fill line (about 2 minutes), snap the funnel to release the stabilizing buffer, and cap it. Your DNA stays stable at room temperature for weeks.

  3. 03

    Mail it back

    Drop the prepaid mailer with your carrier. Your sample is genotyped at Gene by Gene — a CLIA-certified, CAP-accredited genomics laboratory in Houston, Texas.

  4. 04

    Your personalized reports

    In 3–4 weeks your interactive reports land in your Marrow dashboard — your genotype, your result tier, and specific recommendations you can act on with your clinician.

Woman holding a Marrow Health cheek swab

Why Marrow

CLIA & CAP-accredited lab

Every sample is processed by Gene by Gene — CLIA-certified, CAP, AABB, and COLA accredited.

Condition-specific packages, one swab

Your DNA doesn't change. One saliva sample powers whichever condition-specific genetic package you order — now or years from now.

Your data, yours forever

Download raw genotype data anytime. HIPAA-compliant, encrypted, and never sold.