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Your lifestyle written in your RNA

A blood test that reads your RNA and turns it into a biological age and wellness report.

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RNA-based biological age
40.6

1.3 years youngerthan your calendar age of 41.9

Biological age over time 42.4 42.0 40.6 Oct ’25 Apr ’26 Nov ’26
Pace of aging 0.91Below 1.0

Sample report, illustrative data

Why RNA?

Your DNA is the blueprint. RNA shows what your body is doing with it right now.

DNA

The blueprint

Largely fixed from birth. It’s useful for inherited traits and risks, but it can’t show how your body is doing today, or how a change in routine landed.

Barely changes

Epigenetic marks

The dimmer switches

Chemical tags that influence how active genes can be. They sit a step upstream of gene activity, so the view is indirect, and tying a mark to a specific gene or pathway can be hard to interpret.

Changes slowly
What we read

RNA

Genes in action

RNA is the live readout of which genes are turned up or down. We sequence it from a blood sample and turn it into an RNA-based biological age and a wellness report.

Moves with you

Your results, in plain language

Your biological age, the pace you’re aging at, and how each body system is doing, tracked across every test.

Biological age and paceOne number to track, plus the speed you’re moving at.
Body systemsSee which pathways sit above or below what’s typical for your age.
Your lifestyle logNote what you changed, then see what moved at your next test.

Sample report, illustrative data. Logged changes appear alongside your results and show association, not proof of cause.

How it works

From box to report in four steps.

  1. 1

    Order your kit

    Reserve a spot now. When the first batch is ready, we’ll email you so you can order.

  2. 2

    Give a blood sample

    Collect a small sample at home. A step-by-step guide comes in the box.

  3. 3

    Send it to the lab

    Return it with the packaging in the kit. Our sequencing partner reads your RNA.

  4. 4

    Get your report

    Your results arrive in a private online report. Retest later to see what’s changed.

Join the waitlist

By joining, you agree to receive updates about ChronoSplice and accept our Privacy Policy.