I have been on the regimen for a year and working well. For the past three weeks I decided to start using A LOT of jojoba in with Dan's moisturiser morning and evening to see how it worked for me.
After a few days I started breaking out a little with papules on my cheeks and some pustules on my chin. These seemed to take ages to heal and by the third week I was still breaking out. I have subsequently stopped using jojoba and my breakouts are subsiding, slowly but surely.
Bear in mind I was using LOADS, like 12 drops in with the moisturiser and maybe with this more isn't better, i.e. I may not have broken out if I had only used a couple of drops I don't know!
I'm guessing the skin can only absorb so much of the oil put on and the remainder will sit on the surface of the skin and make the skin feel oily. Maybe this extra oil attracts dirt and other airborne contaminates that will sit on the skin and can enter the pores which may have caused my breakout. Just racking my brains as to how something non-comodogenic could have broken me out.