its ability to discolor soaps, lotion, and candle wax. As the vanillin oxidizes, it becomes a brownish hue. This color is harmless and does not impact the way your product works, but many choose to avoid it. If you would like to avoid working with vanillin altogether, we have handily indicated which of our fragrances contain vanillin at high percentages or not. If there is a particular fragrance you are interested in that contains vanillin, you can work with the color change, use a color stabilizer to counteract the discoloration, or contact us for a reformulation!