Rosemary has been known as a "memory herb" since ancient times. Scholars would often wear rosemary wreaths while studying for exams. This reputation has persisted over the centuries, with rosemary used in traditional medicine to treat various cognitive issues. Research shows that essential rosemary oil can help with cognitive performance and memory in older adults, especially perimenopausal women.

Ultrasonic diffusion, which dilutes the essential oils in water to disperse an ultra-fine mist over long periods. while the patent technology of ultra nebulisation directly accesses the essential oil without added water to produce a fine mist that scents your space intermittently over several hours.