Guides
Plain-English explanations of the math and terminology behind reconstitution calculators. No doses, no preparation instructions.
Educational use only
This site shows arithmetic and explains terminology. It never recommends doses, amounts or schedules, and it does not give medical advice. Any volume it shows is arithmetic on numbers you entered yourself. Follow the official product labeling and the instructions of a licensed healthcare professional or pharmacist. See the Medical Disclaimer.
Reconstitution
HGH Reconstitution Explained What reconstitution means, why some products are supplied as dry powder, and where the math fits. A concept guide, not preparation instructions. The HGH Concentration Formula The single formula behind every reconstitution calculator, how to rearrange it, and how to check your result. Understanding Reconstitution Mathematics A step-by-step guide to the arithmetic of dissolving a substance in liquid: base units, concentration, rearranging and error checks.
Measurement
Understanding HGH Measurement Units A plain-English guide to mg, mcg, mL, µL and IU, which conversions are simple arithmetic and which depend on the product. Understanding International Units (IU) Why IU is a measure of biological activity rather than mass, and why an IU to mg factor must come from the specific product. mg vs mcg Explained The difference between milligrams and micrograms, how to convert between them, and the thousand-fold mistakes to avoid.