Map a full peptide cycle — titration, maintenance, washout — in one view. Pick a preset, set the duration, and see weekly dose, cumulative exposure, vials required, and projected cost.
Free to use. No login. The math is the math — the decision to inject anything is not.
GLP-1 titration schedules (4-week steps for semaglutide, similar for tirzepatide) aren't a marketing detail. They exist because nausea, vomiting, and GI shutdown at higher starting doses are extremely common. Skipping the climb usually means quitting in week three.
BPC-157 and TB-500 are usually cycled (load → maintenance → off). GLP-1s for weight loss often aren't cycled at all — they're held, then tapered. Growth-hormone-releasing peptides like ipamorelin/CJC are commonly run continuously with weekend washouts. The schedule depends on the drug, not on a universal "cycle" template.
Projected cost makes a cycle look financially modest. The real ceilings are clinician oversight, lab work cadence, and your tolerance for side effects. A cheap cycle that you abandon in week six because nobody warned you about the constipation isn't cheap.
This planner is a projection tool. It does not endorse any compound, dose, or duration. Cycle decisions belong to you and a clinician who has your full medical history — not to a webpage. See the peptide reference for what each compound actually does.
A loading dose is a higher dose used at the start of a cycle to reach steady-state concentration faster — useful for drugs/peptides with long half-lives (otherwise you'd wait weeks to feel effects). Maintenance is the ongoing dose that keeps you at steady-state. Most peptide cycles use a 1–2 week loading phase at higher frequency, then drop to maintenance for the remainder.
It depends on the peptide's mechanism. Healing peptides (BPC-157, TB-500) are typically 4–8 weeks for an acute injury. Growth hormone secretagogues (CJC-1295, Ipamorelin) are commonly cycled 8–12 weeks on, 4 weeks off to maintain pulsatility. GLP-1 peptides are dosed indefinitely (chronic, not cycled). Always check the specific peptide's recommended protocol — there's no universal cycle length.
For peptides that signal endogenous hormones (growth hormone, sex hormones), continuous use can attenuate the body's own production. A 4-week washout lets the HPA/HPG axis recover. For healing peptides without hormonal effects (BPC-157), washout is mostly about cost — you don't 'need' to wash out, but continuous use is rarely necessary if the injury has resolved.
Total milligrams used across the entire cycle. Useful for: (1) budgeting — comparing the cost of cycle A vs cycle B; (2) vial planning — knowing how many 5 mg or 10 mg vials you'll need; (3) safety — some peptides have published lifetime exposure limits, and cumulative tracking matters.
For peptides with short half-lives (e.g., BPC-157 ~4 hours, Ipamorelin ~2 hours), splitting the daily dose into 2–3 injections gives steadier blood levels. For peptides with long half-lives (semaglutide 7 days, tirzepatide 5 days), once-weekly is sufficient. Half-life ÷ 1 is a rough dosing interval — half-life × 2 produces large peaks and troughs.
Yes — stacking is common in protocols like CJC-1295 + Ipamorelin (synergistic GH release) or BPC-157 + TB-500 (combined healing). Use the planner to track each peptide's schedule separately, ideally in different injection sites, and watch for overlapping side effect profiles (e.g., two peptides that both raise prolactin can compound). Always introduce one peptide at a time so you can attribute effects.