Stack Optimizer
Combine 2–4 peptides. See the whole stack.
Pick your stack. The chart overlays each compound's decay curve, the rows below flag every documented pairwise interaction, and the score gives you a one-glance read on safety + root-cause coverage.
Your stack (2/4)
Healing peptide. Short half-life — split daily.
Long-acting recovery peptide. Twice-weekly typical.
Strong stack. No documented conflicts among selected compounds.
How many compounds in your stack address each root-cause pathway. 0 = no coverage; 2+ = redundant signal (consider trimming).
Pairwise interactions (2)
Complementary healing — BPC signals repair, TB-500 provides structural support
BPC-157 upregulates growth hormone receptors and VEGF while TB-500 promotes systemic cell migration and actin polymerization. Together they create the gold-standard healing stack, accelerating tendon, ligament, muscle, and connective tissue repair through complementary mechanisms. No receptor competition.
Flexible timing, but NEVER mix in same syringe — separate sites required
BPC-157 is one of the most flexible peptides for timing. It works effectively regardless of food intake and can be administered AM or PM. TB-500 is similarly flexible but must be dosed every 5 days (not daily like BPC-157) to respect its half-life. CRITICAL: Never reconstitute in the same vial or draw into the same syringe — peptide degradation occurs when mixed. Inject at separate sites. Optimal pattern: BPC-157 locally near injury site (daily), TB-500 systemically in abdomen (every 5 days).
Want Coach to reason through this stack with citations?
Coach pulls from a curated knowledge graph of practitioner protocols and clinical research. Every claim is rated Clinical / Expert / Experimental. Free 14-day trial — no credit card required.
DoseCraft Stack Optimizer is an educational tool. Compound concentrations are modeled with first-order elimination kinetics (assumes Vd = 1) — the chart shows the SHAPE of accumulation, not absolute serum levels. Always consult a licensed healthcare professional before starting, modifying, or stopping any protocol.
Interaction database + cycling guidance sourced from our curated knowledge graph — see methodology.
Why stacks fail: redundant mechanism (two GH secretagogues hitting the same receptor), bad timing (one compound peaks while another is at trough), or undocumented interactions. The optimizer surfaces all three.
Reading the chart: each line is one compound's plasma concentration over 14 days. When lines cross consistently at the same time, your dosing windows overlap. When one compound's curve sits inside another's, you're getting effective synergy by accident or design.
Safety score: starts at 10. Drops on documented avoid pairs, caution pairs, or unknown pairs (no data is risk too). Synergy pairs add a half-point. Score below 7 = reconsider.
For research use only. Not for human consumption. Not evaluated by the FDA. Not intended to diagnose, treat, cure, or prevent any disease. DoseCraft is an informational tool — not medical advice.
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Track this calculator’s output on a real protocol. Pharmacokinetic math, 90+ compounds, vendor trust layer.