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A recent report from Ural Federal University in Ekaterinburg, Russia, discusses the theory of two-step nucleation and crystal growth in a metastable liquid. The study suggests that crystalline nuclei form in dense liquid clusters suspended in the solution, which have higher solution concentration and viscosity. The researchers propose a growth model that combines diffusion-limited and hyperbolic tangent laws to explain the evolution of a polydisperse ensemble of crystals. The findings indicate that there is a two-step nucleation and growth mechanism, resulting in a distribution function with an N-shaped behavior. This research provides valuable insights into crystal growth in metastable solutions. [Extracted from the article]