 The glycyllalanine hi.h2o polymorph has been found to be a unique material with interesting properties such as pyroelectricity, optical second harmonic generation, thermal memory effect, and nonlinear optical activity. It can also be used as an active system for energy harvesting due to its high piezoelectric coefficient. This article was authored by Rosa M. F. Baptista, Clara S. B. Gomez, Bruna Silva, and others.