Here's some background in case youve just arrived to the peptide party
Use the Peptide Reconstitution Calculator for precise mixing math, the Peptide Stack Calculator for combination protocols with Ipamorelin or Selank, and the Peptide Half-Life Tracker for clearance timing
For a 5mg (5,000 mcg) vial reconstituted in 2mL, the result is 5,000 mcg 2mL = 2,500 mcg/mL
Insulin, GLP-1 agonists such as semaglutide, growth-hormone secretagogues, and most peptide drugs work as receptor ligands or hormone analogues: they bind a defined cell-surface receptor and trigger a signaling cascade whose pharmacology has been mapped in exhaustive detail and tested in large registration trials
Holotranscobalamin and the metabolic markers provide a more informative assessment of functional B12 status than total B12