Your birthday gives one number. Your body gives another.

Baseline estimates your biological age from your habits in about 2 minutes, free. Then it turns that number into a 12-week plan, one habit at a time.

Free to start. Labs optional.

Take a peek

Baseline results screen showing an example biological age of 42.9, about 0.9 years older than a calendar age of 42

The 12-week program screen, showing week 1 with one focus habit and three goals

The workouts screen, with workout plans that fit your time, equipment and goals

A supplement card for creatine monohydrate with a Strong evidence grade, a typical amount and a caution

Your biological age estimate, with a likely range.

2 minutes

Answer a few questions about sleep, movement, food and stress. Add blood work for a sharper estimate.

One habit at a time

A 12-week program that starts with what moves your number most.

Graded by evidence

Every supplement pick is rated Strong, Moderate or Limited, with the research behind it.

Private by design

Your answers stay in your browser. Nothing is sent to a server.

Find out your other age.

Be first to try Baseline on launch day. Follow along for previews, tier lists and tips while we finish up.