I'm with kevin1, I've read the studies, and have used the products for over 10 years and have seen with my own eyes that UV Killer works and I have been busted by not using UV Killer. It's not a big hassle or expensive to use. The wash and spray combo cost me $10. There's enough spray to do 1 set of outer clothing and enough laundry detergent to last half a season or more. The spray you use once and it's done. It's funny that people will pay over $300 for a camo suit and not spend $10 to treat it one time. I also think it's funny that nearly all the hunting laundry soaps advertise NO UV BRIGHTENERS. If UV isn't a concern then why have all of them gone to a no UV brighteners? Maybe they read about the differents studies too? You can count on it! UV Killer just adds an axtra step that blocks the UV dies that are not washed away making it that much more effective.
I would say to killer primate that maybe you should do some reading and answer your own questions and not take kevin1 or my word for it instead of busting our chops. You act like you are so smart yet act like it's our responsability to prove the facts to you. Kevin1 obviously did some reading, shared what he learned here. You say proove it, I say proove us wrong. We can both back up our claims with written studies done by universities. What are your cradentials? Where's your scientific findings on this subject?

What brand of UV killer do you use?

I'll never know if it works or not, but for the ones who have bought scent-loc clothing how do you know for sure it works? Don't get me wrong, I wash my hunting colthes in scent free wash, and I spray on some scent free on my rubber boots, etc. I just can't see the $$$ for their clothes. If the wind is wrong your busted either way... unless you use earth scent gum... Your breath is your worst enemy..JMO

I'm gonna bathe in Wildlife Research's "Scent Killer", spray myself down with UV killer, wear a rebreather and hunt buck naked.

Post some pics...Or Not..

If you're hunting buck nakid you don't need UV Killer. duhh
To answer your question, the U-V Killer I use is made by Sno-Seal., of ATSKO Inc. It says on the bottle "Blocks blue white flourescence seen by animals, insects, and night vision scopes."
I don't care how scent free a person is, if your cloths glow in the dark your every little movement will be seen. How do I know? Because I've gotten away with a lot of movement with treated camo and have been busted with the smallest movement with untreated camo. My experience tells me it works and common sense tells me that if you are buying a hunting laundry soap, might as well buy one that kills odor and UV, it doesn't cost any more and in some cases it's cheaper than some of the other hunting laundry products.
With the Sno-Seal UV Killer, you also get a booklet that explains how carbon works, and how to care for it, and has a lot of good info about UV and scent control.

Not unless he was having fun with his girlfriend the night before and was still wearing his glow in the dark condom! He would then need to dab a bit of UV killer on it so it won't glow too bright and scare off the deer. Then again if he were hunting naked the cold would shrink his weener pretty quick that the condom would probably fall off well before he reached his stand!! Maybe a squirrel or chipmunk can then roll it back up and use it as a hat or something!