About six years ago, maybe more I bought into it and it made me a believer. I had a set of camos that where made before all the UV stuff came out and I was getting busted sometimes in stand. Like being down wind of a deer and all the sudden they just look right up and peg you and bolt. Started using the Scent free soap that had the UV remover in it and I started getting busted alot less. Been a believer ever since. Also about the same time I seen a show on the Discovery channel that was talking about people and animals being color blind, but they hit on this subject and actually mentioned deer. Talked all about the rods in a deers eye compared to ours and how they see it. Been washing with it ever since.