SynergyAn interaction checker for your own stack: peptides, GLP-1s and supplements
Synergy checks the things you actually take against each other — not a generic drug list, your cabinet — and shows how the things in your stack may work together: synergies to lean into and combinations to watch, in plain-language, educational summaries. It is not a clinical interaction database and it never suggests a dose.
Your stack, not a generic list
Add what you take — peptides, your GLP-1 shot or pill, supplements — and Synergy checks every item against every other one. New item, new check.
In plain language
A flag names the pair and what to watch, written to be read, not decoded. Educational only: something to bring to your clinician, never a verdict.
When nothing is flagged
Synergy tells you it has nothing to show for your pairs — it never says "all clear" or "safe", because absence of a flag is not a promise.
Made for use, not for show
Log it. See where it went. See what it touches.
Timing and side effects alongside
Reminders keep the schedule; the side-effect analyzer works your timeline when something feels off, so the interaction check and the symptom record sit in one place.
Private by design
Your tracking data lives on your device, with optional cloud backup you control. No ads, no data sold. Built in the USA.
Synergy is an informational and tracking tool; it does not source or sell any compound and never suggests a dose. Free tier: interaction checks, label scanning, side-effect log, and export. See the comparison and the FAQ. Trackers by medication: semaglutide · tirzepatide · retatrutide · liraglutide · dulaglutide · all apps compared.