Soy Wax Candle Forum - Online resource for soy candle makers

Hi, I am a neewbie. I've just made my first batch of scented soy candles. I am having troubles with my pure Bourbon vanilla essential oil: it's not only very thick but also very dark brown. It just colored my wax in brown and I want to keep my candles natural with no dyes. Same issue with citrus essential oil (like orange) and some dark fragrance oils... I've read that vanilla fragrance oil does color the wax. Do you know how to fix this issue?? Thanks for your advices.