Imgoing to useera free comes in a white bottle with a green top. I called era and they say that is contains no brightners. It didnt say on the bottle so i called and asked.

Well, Iwear myunderbritches and first layer of hunting clothes under a pair of coveralls that I washedand treated like hunting clothes (scent free) out to my hunting site and then dress the rest ofthe way once parked.

pretty much what they said