The only PK tracker that covers your entire protocol in one place. Prescriptions, supplements, peptides, hormones, nootropics. Every compound in your stack, plotted against its own therapeutic range. No account. No Serum cloud. Your tracker data is not sent to us.
Also available as a native app. Free, no account needed.
Serum covers prescriptions, peptides, AAS, psychedelics, and supplements, with model confidence shown per route.
400+ interactions auto-flagged: absorption blockers, dangerous combos, and nutrient depletions you'd never spot manually.
No account. No analytics. No Serum data server. We do not receive what you take; platform health sync and exports happen only when you enable them.
Published studies and labels support the catalog. Each route is labeled as validated, predicted, calibrated, inferred, or unverified.
Pick from 300+ supplements and medications, or add your own compound with custom half-life data.
One tap records a dose. Bundle a whole morning stack together and track every ingredient at once.
Population-based curves estimate absorption, metabolism, and elimination from your logged doses.
Compare how timing, dose, and frequency change the projected curve. Reminders help you follow the regimen you entered.
Swipe through the dashboard, dose log, compound library, withdrawal projection, and stack analytics.
Most trackers count pills. Serum adds population-based estimates of release, absorption, metabolism, and elimination after a logged dose.
First-order absorption via the Bateman equation with calibrated absorption rates, elimination rates, and oral bioavailability for each drug. Buspirone at 4%, curcumin at 5%, propranolol at 25%.
Drugs like fluoxetine, codeine, and amitriptyline produce active metabolites. Serum models the full parent-to-metabolite conversion cascade with independent half-lives.
Testosterone esters, lisdexamfetamine, simvastatin. Prodrugs are modeled with their conversion mechanics, not just the active form.
See where your levels are heading with regular dosing. Tracks time to steady state, peak, and trough. Multiple sources (standalone + bundles) are combined.
Review a model-derived loading suggestion, then configure loading phases, custom frequencies, on/off cycling, and as-needed PRN dosing. Projections adjust accordingly.
Track a multivitamin as one dose, and each ingredient gets its own curve. Overlap detection flags when the same compound comes from multiple sources.
Core tracking works offline. No accounts, Serum cloud sync, analytics, or telemetry. Your regimen, dose history, and settings stay in app or browser storage. The native app excludes them from Android cloud backup; on iOS, it asks the system to exclude them from iCloud Backup.
Android device-to-device setup can transfer local app data. Optional Health Connect and Apple Health integration can sync under your platform settings when you enable it.
Free and works right in your browser. For notifications and health platform sync, install the native app.
Serum is not a medical device and does not diagnose, treat, cure, or prevent any medical condition. Consult a healthcare professional for medical advice, diagnosis, or treatment.
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