Well, this is what EcoSoya says: PureSoy EcoSoya™ CB-Pure Soy has excellent adhesion to containers without preheating, requires only one pour, has an excellent scent throw with both fragrances and essential oils and a creamy white appearance with good resistance to bloom (white frosting) formation when using dyes. CB Advanced EcoSoya™ CB-Advanced Soy has extreme resistance to bloom (white frosting) and “wet spots”. It contracts slightly to produce a uniform beautiful appearance, requires only one pour, has good scent throw with both fragrances and essential oils, and a creamy white appearance. I would summarize and say that the later is more advanced :-) Eran