A health calculator shows the hard parts of solo web apps
Search results for peptide dose calculators are mostly filled with sellers and med spas, so the tools often lead people toward buying something. Some calculators gave different syringe-unit results at small doses, which matters because people may inject based on those numbers. DoseGauge lets a person enter vial size, added water, and target dose, then calculates how much to draw into an insulin syringe. It also shows a curve for each compound and adds a source beside each pharmacology number.
It does not suggest what dose to take; it only calculates from the values the user enters. The app has no ads and no signup. It is a static Next.js and web app. The calculation engine uses pure and tests because a wrong result in this tool could be more serious than a normal software bug.
After one month, it had 917 search and 4 clicks. Google also removed its strongest page from the index, and the site has no yet. The health-related YMYL niche makes early trust and harder.
Key points
- Existing peptide calculators often come from sellers, and some disagree on small-dose syringe units.
- DoseGauge calculates syringe draw amount from vial size, water amount, and target dose.
- The tool does not recommend doses; it only does the math from user inputs.
- and pharmacology numbers are paired with citations.
- After one month, the site had 917 , 4 clicks, no , and one key page removed from Google’s index.