How do isotope fingerprints support doping control investigations?

Synthetic replicas of endogenous steroids are both chemically and pharmacologically indistinguishable from their natural counterparts. By examining isotopes within these steroids, distinct isotope fingerprints emerge in urinary samples, creating a reliable discrimination framework. Explore the concept of Isotope Fingerprints and their application in doping control investigations. Discover how these fingerprints play a crucial role in distinguishing between naturally produced (endogenous) and externally administered (exogenous) steroids.