Metabolic Peak® is your body’s high-output window, the time of day you’re biologically better prepared for higher physical or metabolic demand.

Unlike step counts or heart rate, it reflects when your body is biologically aligned, not just how active you are.

Not always. Circadian timing can shift over time due to factors such as training load, sleep patterns, travel, stress, and seasonal changes.

A single test provides a snapshot. Repeat testing allows changes in Metabolic Peak® to be tracked and interpreted over time.

Each test identifies your Metabolic Peak® — the time of day your body tends to be more prepared for higher output.

You can think of this as your personal high-output window, similar to how wearables highlight readiness or optimal training times.

Because biological timing can shift, repeat testing allows this window to be tracked over time rather than treated as a fixed value.

Just like sleep scores vary day to day, circadian timing can shift over weeks or months.

Repeat testing helps reveal whether your high-output window is stable or moving, adding context to the trends you see in your wearable data.

We’ve worked with over 250 elite athletes from Premier and Pro Saudi league international footballers, elite rugby players and Olympians.

Absolutely, we are founded by a PhD human geneticist. Science is the foundation of our analysis. The rest of the team includes a team GB rower, Oxford /university data scientist, and performance expertise from F1 to international football.

Here is our peer-reviewed validation paper: https://doi.org/10.1080/24748668.2025.2530293

Once we receive your samples, results are usually available within 1–2 days.

Wash your hands before and after, use the tube holders in the tray to securely hold the tube when in use. Concentrate. Ensure you use the right tube at the right time. You can’t really go wrong though. Have a look at our technical note. We’ve tried.

Don’t worry, the test kit will have a spare tube and swab in the inner tray. Take another sample with the spares and place the new sample in the tray where the original sample should be.

Yes. We are GDPR compliant, adhere to the UKs data protection act, and hold ourselves to the highest possible data protection and security industry standards.

Your samples will be stored in our secure laboratory, access is electronically controlled and by authorised personnel only.

Your samples are processed to our exacting industry standards. Once your samples have been analysed and passed our quality control, your samples will be disposed of and incinerated.

No, the type of analysis we do, and the data we generate, cannot be used to identify you.