A fresh ripe cayenne chili is bright, fire-engine red.
Oleoresin capsicum, near as I can tell, is colorless.
That’s because O/C is the essential oil of cayenne pepper. Most makers add UV dyes to the O/C to make those sprayed a little more “obvious” under blacklight. This makes the O/C a pale pinkish-red color. Ask the man who’s been sprayed with it. (namely Me)
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