These watercolors are carefully crafted with professional quality pigments and a handmade binder, made out of gum arabic, and honey. We do not use clove oil in our paints.
Note: always swatch your colors before using them on a finished piece, the paper you are using might affect the color or the way the pigment behaves
PO5 is an fugitive color that fades in direct sunlight. The mass tone of Omen is lightfast. In our own tests we have not seen any differences yet, but it simply is a quality of the pigment used.