Iron oxides are naturally occurring pigments which are commonly used as a colourant in cosmetics, ceramics, paint, ink and cement. Natural Nerd's iron oxides are natural and organic, rather than synthetically manufactured. Iron oxides have no known skin toxicity, and are therefore safe for all skin types when used externally.
You can use iron oxides to colour your homemade soap bars, makeup, bath bombs and bath salts. You can also mix iron oxides with zinc oxide to create lighter shades.
You only need a very small amount of iron oxide to achive good colour in your products. Start with just a pinch. Always start with far less than you think you will need, and add a little more until you achieve your desired colour strength. Iron oxides are potent pigments.
Organic iron oxides are available in four colours: red, yellow, brown and black. They may be blended together in various combinations to create different colours, or blended with zinc oxide for lighter tints. The colours produced are earthy muted shades, rather than bright colours.
Iron oxides are insoluble in water and oil, but they are dispersible in oil.
How to use this ingredient for best results:
- Don't inhale or ingest iron oxides. Wear a mask when handling to prevent inhaling the fine particles. For external use only.
- Disperse in oil with a high speed blender, and stir until the product reaches trace.
- Soap bars: Disperse the iron oxide directly into your soaping oils with a blender, before adding the lye.
- Creams and lotions: Thoroughly blend the iron oxide into your final product after it reaches trace, or after it cools down.
- Balms and salves: Disperse the iron oxide directly into your warm oils with a blender, and once off the heat, continue stirring until the product reaches trace.
Contains red iron oxide (CI77491), yellow iron oxide (CI77492) and black iron oxide (CI 77499).
Shelf life: Indefinite
Packaging: Home compostable wood cellulose bags that will decompose within 6 months in your home compost bin or worm farm. Paper label. The bags may be additionally sealed with a strip of clear tape to prevent spills.