INCI · colorant · CIR review pending · used in 4 products
Ci 77491
CI 77491, also known as Iron Oxide Red, is a widely used cosmetic pigment that imparts red and rust-like tones to formulations. Chemically, it is iron III oxide (Fe2O3) and is responsible for red and pink tones in products such as foundations. It is listed under multiple CAS numbers including 1309-37-1 and 1317-61-9, reflecting different structural forms.
Evidence level
strongEWG score
1/10Comedogenic
0/5Category
colorant● Benefits
CI 77491 functions primarily as a cosmetic colorant, providing red and pink pigmentation in a broad range of makeup and personal care products. Its use is well-established in the industry for color formulation.
colorant
● Cautions
Subject to cosmetic restriction IV/135 as noted in official CosIng information.
