I used CandleScience dyes with some success when I colored candles. We do dye-free only and those that ask why I always tell them the same thing: The dye-free color of soy can match any decor AND dyes can stain, especially rugs and carpet. Besides that, color may also hinder. For example, our Apple Pumpkin fragrance may be red, maybe orange, maybe something else. If I choose one color over the other I'm letting a customers eyes lie to their nose (so a red Apple Pumpkin will smell more apple than pumpkin and vice versa).