Question 1

What does CI 77491 do in a cosmetic formula?

Accepted Answer

This ingredient is an inorganic mineral pigment used to create red, brick, terracotta, and brown tones in color cosmetics, skin care tints, soaps, and hair products. It also adds opacity and helps adjust shade depth in blends with other pigments.

Question 2

Is CI 77491 clean?

Accepted Answer

This ingredient is generally accepted in clean-beauty frameworks because it is inert, non-sensitizing for most users, and not associated with common allergen labeling. The main quality concern is specification control for trace metals and particle size, especially in loose powders that may be inhaled.

Question 3

Is CI 77491 sustainable?

Accepted Answer

This material is mineral-derived or mineral-identical and may be mined or manufactured from inorganic feedstocks for purity and shade consistency. It is not biodegradable because it is inorganic, but it is geologically stable and not expected to bioaccumulate in the way many persistent organic compounds can.

Question 4

Is CI 77491 COSMOS-approved?

Accepted Answer

It is permitted under COSMOS for natural and organic cosmetics when it meets purity and colorant requirements, though it does not add organic content. From a Green Chemistry view, it scores well for stability, low reactivity, and low use levels, with the main compromise being non-renewable mineral sourcing and energy use in pigment processing.

Question 5

How does CI 77491 work chemically?

Accepted Answer

This compound is an insoluble inorganic oxide pigment whose color comes from transition-metal electronic structure and controlled crystal form, rather than dye-like solubility. It is typically used from trace tinting levels up to high single-digit or higher percentages in color cosmetics, and it is stable across normal cosmetic pH ranges, heat processing, light exposure, and most oil, water, and wax systems.