I use coconut oil all the time with no build up. For me, it co washes out very easily. I usually leave it on overnight and co wash it out in the morning. Is the Vatika the one with coconut, neem, henna and some other oils? I wouldn't think it would build up, but you'll just have to try it and see. I do usually leave my conditioner in my hair for a few minutes while showering. It seems to help get all the oil out. Good luck.