Black iron oxide is perfect for getting a deep shade of black in soap, or to deepen the tone of other colours. This is an all natural colourant.
To use in soap:
For cold process soap, add ½ teaspoon of oxide to 1-2 Tbps of a carrier oil like Sweet Almond and mix well – add 1 teaspoon of this mixture to your soap mixture.
INCI | Iron Oxide |
Lip Safe | Yes |
Cosmetic Use | Yes, FDA approved for cosmetic use |
Form | Matte black powder |
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