Sawyers permethrin spray is .5% and found in most WalMarts in these parts. Labeling of the Sawyers directs one to spray on external clothing, and allow to dry. Lasts for 6 weeks or 6 washings of the clothing.
Concentrated solutions are sold online and in most farm/animal supply stores as 10% solutions. 20:1 dilution gets you to the .5% of the Sawyers. The labels dictate animal usage only of this product. As the son of a veterinarian, I have used animal products "off label" for personal use quite successfully over the years..........the twitches are barely noticeable!!
Concentrated solutions are sold online and in most farm/animal supply stores as 10% solutions. 20:1 dilution gets you to the .5% of the Sawyers. The labels dictate animal usage only of this product. As the son of a veterinarian, I have used animal products "off label" for personal use quite successfully over the years..........the twitches are barely noticeable!!