How should nail polish be properly mixed?

Rolling nail polish in your palms is the proper method for mixing because it gently combines the ingredients without introducing excessive air into the bottle or risking the formation of bubbles. When nail polish is shaken vigorously, it can create air bubbles that may affect the consistency and application of the polish. Stirring with a brush may not evenly distribute the pigments and can lead to uneven color and texture. While using a nail polish mixer can be effective, it is not typically a standard practice for everyday use in home or salon settings, particularly when simpler methods like rolling in palms are available. By rolling the bottle, you ensure a smoother and more uniform application.