All Ingredients/Red Iron Oxide (CI 77491)
Red Iron Oxide (CI 77491)
Summary
Red Iron Oxide (CI 77491) is one of the colour additives that carries shade in our formulas. It appears in 222 products in our range.
About
On an ingredient list it is written as CI 77491 (Iron Oxide Red); CI 77492 (Iron Oxide Yellow); CI 77499 (Iron Oxide Black). Its colour index number is CI 77491, CI 77492, CI 77499. Its CAS reference is 1309-37-1 (red, Fe2O3); 51274-00-1 / 20344-49-4 (yellow, hydrated Fe2O3); 12227-89-3 / 1317-61-9 (black, Fe3O4). It is mineral (synthetic iron oxide, cosmetic grade).
In the Formula
It is a colour additive. It carries the shade itself, which is why it appears in the shade-dependent portion of an ingredient list rather than the fixed base. Formally it is classed as colorant (iron-oxide pigment triad: red, yellow, black).
The Evidence
It is a listed cosmetic ingredient with an established function in the EU CosIng inventory. We hold no finished product study on it and do not imply one. We cite what the ingredient is assessed for, not what a finished product was claimed to do.
Honest Limits
Red Iron Oxide (CI 77491) does its job inside the formula. It is not an active, and nothing on this page should be read as a treatment claim.
Where we use it
- Blush Palette Kissable Buildable Silk Finish For All Skin Tones
- Blush Palette Pinch Buildable Silk Glow Three Shades All Skin Tones
- Blush Palette Squish Buildable Color For All Skin Tones Silky Glow
- Bronzer Caramel For All Skin Tones Silky Everyday Glow
- Bronzer Mocha For Everyday Makeup Lovers Silky All Year Tan And Sculpt
- Bronzer Pecan Sculpting For All Skin Tones Silky Finish
- Bronzer Tawny Natural Glow Buildable Silky Finish For Makeup Lovers
- Liquid Blush Cherry Dewy Tint Buildable Glow For Daily Makeup Lovers
And 214 more.
