Really strong!
You won't miss smelling this one! It does not smell bad - just really strong sweet citronella / rose scent. However, if you have gnats swarming you - this is the strongest product I've yet tried. It worked for several hours. For sure it worked over the course of a 3 1/2 hour hike in the gnat invested woods of central Arkansas (they are terrible in the spring - thank goodness they die in the summer!) Most sprays I've tried require hourly reapplications. I gave this product to be tested by a few of my employees (we work outside mostly) and they report the same performance.
Rating: 5 stars