I use it with a commercial unscented soap while washing my hunting clothes. However, another way to use it is to make your own scent killer spray. I have used this for years and it works as well as any commercial spray. You will need to buy a spray bottle if you don't have one laying around somewhere. Here's the recipe for anyone interested that hasn't seen it before:
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Here's a recipe for homemade Scent Killer from Field and Stream.
2 Bottles of hydrogen peroxide 16oz
32 oz of distilled water
¼ cup baking soda
1 oz sportsman’s wash laundry detergent or any unscented detergent
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Pour hydrogen peroxide in a large open container.
Add the distilled water.
Add the baking soda and the unscented soap.
STIR DO NOT SHAKE!
Use a wooden spoon and stir the ingredients together. Add very small amounts of baking soda at a time stirring until it is completely dissolved. Let this ferment for three days, stirring once or twice a day. Do not seal tight in the first 3 days because it may build up pressure and explode. After the three days store the scent killer in dark containers like the peroxide containers and in my spray bottles. Light breaks down hydrogen peroxide.