Primos Silver XP™ Plus Masking Scent is a Dual Action product eliminating both bacteria caused odors such as body odor and non-bacterial odors such as smoke and food odors. Primos Silver XP™ Plus Masking Scent works on contact and instantly removes odors from clothing and equipment and keeps them gone for up to 24 hours.primos has invested in a patent pending technology utilizing tiny particles of suspended Silver in a scent eliminating solution so hunters will have the most effective means of combating every type of odor. The Colloidal Silver particles in Silver XP™ strike bacteria before it has a chance to break down and cause body odor.Like you, I've known for a long time that my chances of getting close would be better if the game I was pursuing could not smell me. Well, now you and I have a product that is safe and that works.