One number can answer several different questions
A value observed today, a historical starting point, and a modeled future checkpoint do not carry the same meaning. Testosterone also shows diurnal variation, so time context matters even when discussing laboratory measurements.
Dr. Testo makes the product roles explicit rather than presenting one floating score.
The scale on Home
| Marker | Product role |
|---|---|
| 0 and 1100 | Bounds of the visual product display |
| 264 and 916 | Harmonized healthy benchmark context used by the product |
| Starting | Historical assessment result |
| Base | Slower-changing foundation |
| Today | Current signals layered over Base |
The 264–916 ng/dL range comes from a harmonization study of healthy, non-obese men aged 19–39. It is a benchmark context, not a universal personal target.
Reading direction over time
Protocol Potential compares four scenarios at D30, D60, D90, D180, and D365. Progress has a different role: it records actual use and actual product history. Showing them together helps distinguish a modeled direction from what has happened so far.