Red Iron Oxide pigment is a non bleeding pigment that is suitable for opaque or white melt and pour soaps and it is also stable in cold process soaps. Depending on how much you add, you can create various shades of dark, deep red.
Unsuitable for clear bases as it will give a speckled appearance.
It is best to mix this first with either a carrier oil for cold process soaps or with distilled water or glycerine for melt and pour soaps. If you add it straight into the base, it will probably clump up and look very messy. Either way it does need to be mixed in well before adding to your base.
Sold in 25g quantities.