Androstenone is extremely viscous and builds up over time. Definitely residual mones there. I suggest doing a build-up routine, since you have New Pheromone Additive. There are a few great threads on this topic in the Love-Scent section. Head over there if you're interested.

Soap alone can work well, but it's still difficult getting off certain molecules, none and THDOC especially. Hydrogen Peroxide and Witch Hazel does well in removing all mones, IME.