Tools
Free tools that show their work. Each one says where its numbers come from, runs in your browser, and never recommends a medicine or a dose.
What did the trials find?
Trial results explorer
Pick a trial, enter your weight, and see the group average in pounds next to placebo. Every number links to the paper.
31 published trials, from approved medicines to those still in testing
Open the explorerHow far have I come?
My weight change
Enter two weights for your percent change, set it beside a trial, or keep a private log that charts your weights over time on this device.
Saved only in your own browser, and only if you add entries
Open the toolWhat could a year of this cost?
What a year can cost
Pick a price the makers list, or type your own, and see what it adds up to over the months you choose. Put two options side by side. Extra fees and 28-day fills included.
Built on prices read from maker pages in October 2026, which change
Open the toolWhat do the published protein ranges look like?
Protein and strength reference
Enter a weight to see the protein ranges from a 2025 expert advisory in grams, and what the sources say about strength training.
Reference points from published guidance, not a target for you
Open the referenceWhere do I sit on the charts?
BMI and body measures
BMI, waist-to-height ratio and the weight range for your height, with the cutoffs health agencies publish and what BMI misses.
Built on CDC, NICE and a 2025 Lancet commission
Open the toolI have a powdered vial. What does the math say?
Reconstitution calculator
Concentration and syringe marks for powdered vials. Math only. It never suggests an amount.
Peptides, HCG and HGH, U-100 syringes
Open the calculatorI have a question about a medicine
Ask the Atlas
Type a question and get a short answer drawn from the Atlas pages, with the sources shown.
Answers come only from pages and sources on this site
Ask a questionHow these tools are built
- Numbers come from named papers, guidelines or product labels, listed on each tool page.
- Everything runs in your browser. Nothing you type is sent anywhere. The only thing ever saved is the weight log, and only on your own device, only if you add entries.
- Limits are written next to the result, not hidden at the bottom.
- None of them recommends a medicine, a dose or a schedule.
Private by design. The tools run in your browser. Nothing you type is sent anywhere. The weight log keeps entries only in your own browser, and you can erase them at any time.