For Longevity Stackers
A seven-compound longevity stack is not a notes-app problem.
Tesamorelin, BPC-157, NAD+, Epithalon, Pinealon — different half-lives, different reconstitution math, different timing relative to sleep and exercise. My Pep Calc keeps the whole protocol in one place.
Start tracking free →Why longevity stackers need this
High-LTV protocols require high-fidelity tracking.
Compound count
The average advanced longevity stack has 5–9 compounds with overlapping timing windows. Tracking each independently creates gaps, overlaps, and dosing errors.
Sleep-timing interactions
Tesamorelin and other GH-secretagogues are dosed relative to sleep. If your schedule shifts, your half-life picture changes. You need to see the curve.
Clinic handoffs
Switching providers, traveling, or adding bloodwork? Your new clinic needs your protocol history. Most patients can't reconstruct it accurately.
Signal extraction
Are your biomarkers moving because of the protocol, or lifestyle, or both? Without a clean log, you can't isolate variables well enough to iterate.
What My Pep Calc does
Purpose-built for complex, long-horizon protocols.
Multi-compound half-life chart
Real-time active-concentration curves for every compound in your stack. Spot interaction windows before they happen.
Reconstitution calculator
Per-compound reconstitution math. Every vial strength + bac water ratio + target dose → exact units to draw. No more napkin math.
Site rotation tracker
Systematic injection-site rotation across all compounds. Logs the when, what, and where of every injection.
Protocol export
One-click export of your complete protocol history — useful for clinic visits, provider handoffs, and your own quarterly reviews.
Notes + correlations
Attach notes to any dose event. Over time, patterns emerge — sleep quality, energy, recovery markers — all anchored to what you logged.
Protocol Coach (Pro)
Claude-powered coaching with your full protocol as context. Ask about timing optimization, reconstitution questions, and interaction awareness.
"At seven compounds, the marginal cost of a tracking error is high. You need software that thinks in protocols, not ingredients."
David K. — longevity-focused MD, Founder member
Free to start. Scales with your stack.
Log up to 3 compounds free. Pro unlocks unlimited compounds, the full half-life chart, and Protocol Coach.
My Pep Calc is a tracking tool, not a medical service. Nothing here is medical advice. Medical Disclaimer