Does anyone know if Scent Killer keeps from year to year? I found a 2 bottles last night that were in my closet. both of them are almost full. I do remember that the one was in the bed of my truck and may have froze but hte other one never left the house

I am not real sure about the frozen one (although I think it would be OK) I have used some that was old and it seemed to work fine, again I am not sure it was the same brand as yours, I think mine is labled "Scent Killer", Doc

Had some from two years ago. So I poured some out and checked it to be sure.

In my case, I dumped the whole batch, to my great regrets. My homemade scent killer had hydrogen peroxide as an ingredient, and that can go bad somewhat easily, because of light.

Check it out at home would be my recommendation. Not out hunting.

I had some from last season and it seemed to work fine.

Same here, I always have a bottle or two (more like half bottles) laying around camp from the previous year and never had a prob with them.