Thank you for your question. We are not familiar with the properties of a reed diffuser oil. However, our basic understanding tells us the oil needs to be thin so it can be soaked up by the reeds. This Body Spray or the Fragrance Oil Spray might work for this purpose since it is formulated with a spray base to allow the oil to be thin enough to mist from an atomizer. This product can also be put into spray bottles and sprayed into the air for air freshening purposes.