Cysteamine is an aminothiol which can be biosynthesized by the degradation of coenzyme A . This aminothiol "presents several biological applications" . However, it has some features which are limiting its efficacy. "The use of encapsulation systems is a good methodology to overcome these undesirable properties and improve the pharmacokinetic behavior of cysteamine" . Also "the conjugation of cysteamine to the surface of nanoparticles" can improve its delivery and detection (Atallah et al., 2020). Atallah and in their review, compiled "all the data" on methods to detect Cysteamine, as well as "an overview of the various biological applications of cysteamine focusing on its skin application".