A light application will soften and break up the accumulation of proteins & residues from insects, allowing for easy rinsing away with no lasting effects.
Besides the chemistry, we spent months deliberating on exactly what bottles and sprayers we wanted to use. We sourced from around the world, landing on the Italian sprayers and USA bottles that you see today. We could have gone with much cheaper plastics, but we wanted something that would be worthy of the Esoteric name.
When you finish the bottle, don't throw it away! The quality of both the bottle and sprayer mean that you can continually reuse them for a long time.