📅 Weekly Injection Schedule

Plan your weekly peptide injection schedule — add compounds to each day of the week, track doses and routes, then print or export your protocol card.

⚠️ This planner saves your schedule locally in your browser. No data is sent to any server. For research planning purposes only.
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Injection Scheduling Tips

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Rotate Injection Sites

Alternate between abdomen quadrants, thighs, and upper arms. Never inject the same 2 cm² area within 7 days to prevent lipodystrophy.

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Consistent Timing

Peptides with short half-lives (BPC-157, Ipamorelin) benefit from consistent timing. GLP-1 agonists are more forgiving — any day of the week within a rolling 7-day window.

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Storage Reminder

Mark reconstitution dates on each vial. Refrigerate at 2–8°C. BAC water-preserved vials are stable for 28 days — your calendar helps you track when each vial expires.

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Stack Timing

When using multiple peptides, separate injections by 15–30 minutes if possible. GLP-1 agonists (Sema, Tirz) should be injected on the same day each week for hormonal consistency.

More Calculators

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Reconstitution Calculator
Calculate peptide concentration and exact draw volumes from vial size and BAC water. Includes dosing table and BAC water optimizer.
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Injection Volume Calculator
Convert dose and concentration to the exact mL and syringe unit mark. U-100 and U-40 support with precision warnings.
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Body Weight Calculator
Calculate your personalised total dose from a per-kilogram research protocol with kg / lbs conversion.
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Vial Duration Calculator
Find how many days your reconstituted vial lasts and flag any 28-day expiry window issues.
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Cost Calculator
Calculate cost per dose, weekly spend, monthly budget, and full cycle cost for any peptide protocol.
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GLP-1 Titration Planner
Complete semaglutide or tirzepatide titration schedule with weekly doses, reconstitution instructions, and vial planning.
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Protocol Builder
Build a full multi-peptide weekly injection schedule with vial requirements for your cycle length.
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Peptide Reference Table
Searchable dosing reference for 23 peptides: dose ranges, frequency, route, and research notes.
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Retatrutide Calculator
Calculate retatrutide reconstitution concentration, exact draw volume, and doses per vial for your weekly protocol.
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Ozempic (Semaglutide) Calculator
Calculate semaglutide reconstitution concentration, draw volume, and doses per vial for every titration phase from 0.25 mg to 2 mg.
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Tirzepatide Calculator
Six-phase tirzepatide reconstitution and dosing calculator — 2.5 mg to 15 mg/week with exact draw volumes for every vial size.
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BPC-157 Calculator
BPC-157 reconstitution calculator with injection frequency selector — once daily, twice daily, EOD, or weekly dosing.
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TB-500 Calculator
TB-500 loading and maintenance phase calculator — dose per injection, vial size, BAC water, and syringe draw volume.
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BAC Water Optimizer
Reverse-calculate the ideal bacteriostatic water volume to achieve a target draw size for any dose and vial combination.
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Peptide Half-Life Tracker
Track how much peptide remains active after your injection — see time to 50%, time to clear, and a visual decay timeline for 22 compounds.
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Peptide Stack Compatibility
Check compatibility between 2–3 peptides — synergistic pairs, caution combinations, and mechanism notes from 20 documented stacks.
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