Run your peptide & GLP-1 protocols with the science behind every dose.
Set your timing, titration and cycle once. PeptideBuddy tells you when each dose is due, the exact units to draw, and — by modeling every compound's half-life — what's still active in your body right now.
- Completely free
- No card required
- Educational — not medical advice
Plan it once. Check it off daily.
Build a protocol with per-day timing, week-by-week titration and an on/off cycle. Each day you get a one-tap checklist. Doses record at their scheduled time, so your burn-down stays accurate even when you log late.
Today's doses
Week 7 · Day 45Retatrutide
Titration
drag to shapeRamp the dose week by week — drag any point and the whole schedule reshapes.
A second pair of eyes on your plan.
The mistakes that matter are the easy ones: mg typed where you meant mcg, a dose bigger than the vial, a ramp that outruns the label. PeptideBuddy checks every protocol against a fixed set of written rules and tells you what to double-check, and why.
- Catches unit mix-ups, impossible draws and doubled-up GLP-1s
- Compares semaglutide, tirzepatide, liraglutide and dulaglutide with their label's dose ladder
- Written rules, not an AI opinion — and it never blocks you
Safety check
2 to checkThat's about 1000× the typical reference dose (250 mcg). A difference of roughly 1,000× usually means mg and mcg were swapped — check the unit.
Week 3 goes from 2.5 mg to 5 mg after 2 weeks at the lower dose. The Zepbound label increases one step at a time, staying at least 4 weeks on each dose.
See how you feel line up with what's on board.
A few taps a day on nausea, appetite, energy, mood and sleep. PeptideBuddy lines those ratings up with the modeled level of each compound, and tells you when there's a real pattern and how many check-ins it rests on.
- Compares the days after a dose with later in the cycle
- Only reports a difference that is large and unlikely to be chance
- A pattern in your own entries to take to your clinician — not a claim about cause
Patterns with your doses
example data- Nausea and Retatrutide
Nausea averaged 1.6 (slight–moderate) in the 2 days after a Retatrutide dose, versus 0.2 (none) the rest of the week.
2 days after a dose1.69 check-insLater0.211 check-ins
Share a protocol with one link.
Send your plan to a friend, a coach or a forum thread. They see the items, doses, schedule and titration, and can add a copy to their own account in one click. Your name, notes and dose log never leave your account.
- A read-only page — no account needed to view it
- Imports paused, so nothing is scheduled until they've reviewed it
- Turn the link off whenever you like
Everything a protocol needs, in one place
Plan
Protocols & titration
Timing, weekly ramps and on/off cycles, with a one-tap daily checklist.
Single-vial stacks
Log a blend as one shot while each compound keeps its own curve.
Smoother schedules & tapers
Compare spacings at the same weekly total, or plan a step-down.
Understand
Half-life burn-down
What's still active, when it clears, and how doses build up.
Check-ins, weight & labs
How you feel, your weight and your bloodwork, next to your doses.
Clinician report
A printable summary and CSV export of everything you've logged.
Stay ahead
Reminders & app
Email or push when a dose is due. Installs on your phone like an app.
Inventory & label scan
Doses left, run-out and use-by dates. Add a vial from a photo of its label.
Injection-site rotation
A body map that suggests the longest-rested spot each time.
Coming from a spreadsheet or another tracker? Import your dose history from a CSV file. Your log is private to your account — nothing is public unless you share a protocol.
Free calculator and references — no signup needed
The exact units to draw, plus half-lives, dosing and reconstitution for the compounds and supplements people actually run.
Know what's on board. Every day.
Set up a protocol in a couple of minutes, or just log your next dose and watch its curve appear.