Tools
Interactive references built the same way as our articles — every number sourced from the trial, the label, or the paper of record. No black boxes; tap through to the primary source on any figure.
Peptide evidence matrix
BPC-157, TB-500, GHK-Cu, sermorelin, the GLP-1 drugs and more — graded by how strong the human evidence actually is, with a primary source on every grade.
Open tool →GLP-1 weight-loss comparison
Semaglutide, tirzepatide, retatrutide, CagriSema and the oral pipeline — ranked by mean weight loss, every figure traced to its pivotal trial.
Open tool →Longevity evidence matrix
NAD⁺, rapamycin, metformin, resveratrol, spermidine, fisetin, urolithin A, TRT and more — graded by how strong the human evidence is, with a primary source on every grade.
Open tool →GLP-1 dose ladders
The FDA-label titration schedule for Wegovy, Zepbound, Ozempic, Mounjaro and Rybelsus — step by step, straight from the prescribing information.
Open tool →GLP-1 cost estimator
What you'll really pay for Zepbound and Wegovy by coverage scenario — covered insurance, uncovered plan, cash self-pay, or Medicare/Medicaid. Every figure from the manufacturer's pricing.
Open tool →NAD⁺ delivery comparator
Oral NR, oral NMN, injection and IV compared on evidence, cost and convenience. Pick your priority and see which NAD⁺ format fits — with the honest data on every option.
Open tool →Peptide reconstitution calculator
Enter the peptide in the vial, the bacteriostatic water you add and your dose — get the concentration, the units to draw on a U-100 insulin syringe, and doses per vial. The math, not dosing advice.
Open tool →Testosterone calculator
Free & bioavailable testosterone from total T, SHBG and albumin (the Vermeulen equation) — plus a TRT dose-to-units converter. The active fraction your total number hides, and the math behind a dose.
Open tool →Peptide & drug half-life calculator
How long a peptide or drug stays in your system. Pick a compound (sermorelin, CJC-1295, semaglutide, testosterone esters…) or a custom half-life — see the percent remaining and when it reaches 50/25/5/1%.
Open tool →Hormone unit converter
Convert testosterone, estradiol, SHBG, DHEA-S, cortisol and progesterone between US units (ng/dL, pg/mL) and SI (nmol/L, pmol/L) — instant two-way, with the lab factor shown.
Open tool →Testosterone & TRT lab interpreter
Enter your total and free testosterone, SHBG, estradiol, hematocrit, hemoglobin and PSA — each is read against adult-male reference ranges and the guideline action thresholds (including the 54% hematocrit line), with the reasoning, not just a red or green light.
Open tool →Peptide dosage & cycle calculator
Plan a cycle: enter your per-injection dose, frequency, cycle length and vial size to see the weekly and total amount, how many vials you'll need, how long a vial lasts, and cost per dose and per cycle. Pure planning math — not a dose recommendation.
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