For oil itself, I did not so long, but because I have a cold was my nose quite rough and lubricate after a few times, my skin and my lips no longer dry and rough!
For long-term effect, I can not say anything yet, but I will catch up!
The best apply the oil at night, or if you do not leave the house, because the oil is very Lichtempflindlich and then of course not ideal for the skin is when the sun shines!