Pure Rosemary Essential Oil- Rosmarinus Officinalis-15ml- Destination Oils. Rosemary essential oil is clearing to the mind and body. From the Rosmarinus Officinalis plant, it can be a great go-to oil due to its vast property list (one of the longest we offer!). Pure Rosemary oil can increase energy and memory recall. It also may revive overworked, tired muscles, and decrease feelings of dizziness.