F*^k Aging!

Labs

“What should my testosterone be?” and questions like it are some of the most common things men search for. Here’s a straight answer on where common markers commonly fall — and a tool to check your own numbers against it, without creating an account or storing anything.

Lab Reference Checker

Enter values for testosterone, cholesterol, glucose, A1c, vitamin D, thyroid, and inflammation markers and see where each falls against a commonly cited reference range.

Why no accounts, no saved history

Lab values are about as sensitive as personal data gets. This tool works entirely in your browser and never sends what you type anywhere — nothing is stored in a database, nothing is tied to your account even if you’re signed in elsewhere on the site, and it’s gone the moment you refresh the page. That’s a deliberate tradeoff: no history to look back on, but nothing to worry about either.