Anti-Alkanet The Purples is a set of natural colorants that make Purples in soaping. As seen in Kandra Churchwell's The Natural Soap Color Palette. Freshest Natural Colorants. Always.[short description] Anti Alkanet The Purples is a pretty awesome set of natural colorants to make soaps go all purple. This set include 3. 5oz each of Madder, Activated Charcoal and Alkanet. So, this all started with Kandra Churchwell, Soapy Friend to adoring audiences all over the world, wanting to get her soapy purples right. It was three years of study and trials before the final hurrah! And while Kandra was getting Alkanet to behave and make