Various plants/flowers: When essential oil is made until an oil during the steam distillation process, plant material is mixed with water and then distilled: out comes water and on top of the water is the oil we use as an esential oil. Hydrolats are the water taken from the steam distillation process of the plant! Some farmers just place this water right on back on the flower/plant: others, allow us to use it as plant medicine! It is a spray in 120 ml form. It does not spray as strong as the essential oil it self but its energy is powerful. Check out the different types.