Pure unit-conversion math for TB-500 (mg → mcg → IU on a U-100 insulin syringe). Half-life steady-state graph, cost-per-mcg comparator, shareable URL. Research use only — no clinical recommendations.
→ Open the TB-500 calculatorTB-500 is a synthetic Thymosin β-4 fragment. Plasma persistence around two hours; tissue effects longer. Goldstein's parent-molecule literature on actin-sequestration and migration is real; the synthetic-fragment human data is much thinner.
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Verify your vendor: See TB-500 COA scores at /coa-index.