Brows stay in place perfectly. I use 2 to 3 pans of wax for each pan of powder in the Brow Wax Duo product, with one pan of wax lasting several months with daily use. The product doesn't dry out over time as combined powder-wax product can. In the Brow Wax Duo or any other brow product, the colour integrity is preserved by keeping it separate from the wax.
Apply by brushing brow hair upwards, then applying a light layer of wax in the same direction with either a sponge tip applicator or fingertip, and finally using the applicator or fingertip to sweep along the top edge of the brow to smooth the line.