Question 1

What does Barium Sulfate. May Contain: CI 77891 do in a cosmetic formula?

Accepted Answer

This ingredient is used as an opacifier, bulking agent, and mineral pigment support, adding whiteness, coverage, slip, and density in makeup, powders, nail products, and some skin-care formulas.

Question 2

Is Barium Sulfate. May Contain: CI 77891 clean?

Accepted Answer

From a clean-beauty perspective, it is generally considered low-reactivity on skin because it is highly insoluble and has minimal dermal penetration. The main quality considerations are particle-size control for loose powders and trace-metal specifications from mineral sourcing.

Question 3

Is Barium Sulfate. May Contain: CI 77891 sustainable?

Accepted Answer

This material is mineral-derived, so its footprint is tied to mining, purification, and particle processing rather than agriculture or petrochemical feedstocks. It is not biodegradable in the organic sense, but it is also highly insoluble and environmentally inert under normal cosmetic-use conditions.

Question 4

Is Barium Sulfate. May Contain: CI 77891 COSMOS-approved?

Accepted Answer

It is generally compatible with COSMOS-natural style mineral ingredient rules when it meets purity and processing requirements, though it is not a renewable or biodegradable organic ingredient. Its Green Chemistry profile is mixed, with good stability and low reactivity, but limited renewability and mining-related sourcing impacts.

Question 5

How does Barium Sulfate. May Contain: CI 77891 work chemically?

Accepted Answer

This compound is an insoluble inorganic salt made of divalent metal cations and sulfate anions in a dense crystalline lattice, which explains its opacity, weight, and very low solubility. It is stable across typical cosmetic pH ranges, does not oxidize in formulas, and is commonly used from low single-digit levels for opacity or slip to much higher levels in pressed and loose color cosmetics.