Himecoto White Armpit Princess Night Pack is a Japanese skincare product designed to address underarm discoloration and texture concerns while you sleep. This non-greasy cream contains placenta extract for whitening and glycyrrhizic acid for anti-inflammatory effects. Applied before bedtime, it works overnight to brighten dark areas, reduce melanin production, and moisturize the skin. The lavender and bergamot-scented formula is best suited for those dealing with underarm darkening from shaving or friction, though it may not be suitable for sensitive skin.