Black Iron Oxide 1oz - Black is a great color to have in any collection. We recommend starting out at 1/16th to 1/8th teaspoon per pound for melt & pour soaps. For cold process, add ½ teaspoon of oxide to 1 ounce of a carrier oil like Sweet Almond or Olive Oil and mix well using a small mixer – add 1 teaspoon of this mixture to your batch. FDA approved for all cosmetic use.
Approved for cosmetic use without restriction.
INCI: Black Iron Oxide (CI 77499) (CAS#1317‐61‐9) 
All cosmetic grade iron oxide is made in a lab for ensure the purity required by the FDA