 Paravskite solar cells have seen rapid advancements in recent years, reaching efficiencies comparable to those of traditional inorganic thin film technologies. However, their instability remains a major obstacle for widespread adoption. Two approaches have been proposed to increase the device's stability, developing protective layers around the vulnerable Paravskite absorber or developing a more resilient Paravskite absorber. Researchers have found that both strategies are necessary to achieve long-term stability on par with that of inorganic thin film technologies. This article was authored by Severin N. Habisridinger, David P. McMeekin, Henry J. Snaith and others, and