There are many types of soap colorants you can use to color your cold process soap. Here are some of the more widely used types:
Natural Pigments (Oxides and Ultramarines) – Once mined from the earth, oxides and ultramarines are now lab-created to ensure purity.
Mica – Mica is what gives cosmetics, paint and other products sparkle. Mica is colored using pigment or dye coatings.
Natural Colorants – My favorite colorants to use are natural colorants including spices, herbs, clays and other botanical powders resulting in beautiful natural colors of cold process soap.
Cosmetic Pigments – These are popular these days for those wanting super bright colors in soap. Cosmetic pigments (also called neons and brights) are plastic coated dyes.
Dyes – Dyes are synthetically produced colorants that are commonly found in the food and cosmetic industry.