Just ran across this site. It appears they sell odorless 10% Permethrin for use in the home. Prices appear to be more than Tractor Supply's stuff for livestock, but less than Sawyer's pre-mixed stuff for hiking gear.
Here's the direct link to the concentrate--
odorless Permethrin-10 concentrate
Link to the label for that product--
One of the pages on the site is the Sawyer's aerosol label--