You can absolutely mix it. No prob. If however you are wanting to mix 2 flavors I would do it in a small bottle and try it. I've been doctoring
juice since I started and had no probs. Some times if you have a
juice that's just not quite the flavor you like, you can add Lorann's to it or some flavorings that some of the suppliers sell. You can also add VG to a juice if it doesn't vape the way you like or PG if it's too thick. Feel free to make your juice work for you. As expensive as it is, it doesn't make sense not too. Good luck!