Red Iron Oxide Powder E127. This pigment is suitable for cosmetics and is stable in CP soap, however colours may fade and can differ depending on your recipe, it also works well in M&P soap. Offering natural earthy tones, test with just a small amount until you achieve the shade that you are happy with.
CI: 77491
MSDS RED IRON OXIDE
Prices start at £3.85 for 25g