Flower essences are a form of herbal medicine used in flower therapy. They're believed to contain the vibrational energy of flowers, which can improve negative thoughts and emotions. 
The Rose is the highest living being on our planet, thus being exposed to the rose can naturally raise your vibration and mood. The rose is very supportive of Plant Medicine that can help us work through negativity, grief, and emotional pain, when consume in water or just under the tongue, the rose has the potential to work from within and increase effectiveness. One dropper under a tongue or in a beverage of preference is enough to start bringing a sense of lightness and ease.