Question 1

What does Ci 77266 \ Nano\ do in a cosmetic formula?

Accepted Answer

This ingredient is an insoluble colorant used to create deep black payoff in products such as mascara, eyeliner, brow products, and nail color. It does not dissolve into the formula, it is dispersed as fine particles for opacity and color intensity.

Question 2

Is Ci 77266 \ Nano\ clean?

Accepted Answer

From a clean-standard perspective, this ingredient carries more friction than many mineral colorants because nano-scale particulates and trace combustion by-products are closely controlled. EU use is tied to purity specifications and inhalation-exposure limits, so it is generally considered more restricted than uncomplicated pigments.

Question 3

Is Ci 77266 \ Nano\ sustainable?

Accepted Answer

This material is typically made from fossil-derived hydrocarbon feedstocks through controlled combustion, so renewable sourcing is weak. It is insoluble and not biodegradable, and the particles can be environmentally persistent even though they are largely inert when bound in a cosmetic matrix.

Question 4

Is Ci 77266 \ Nano\ COSMOS-approved?

Accepted Answer

This nano form is not aligned with COSMOS-natural or COSMOS-organic standards because intentionally manufactured nanomaterials are generally not permitted. Its Green Chemistry fit is limited by nonrenewable feedstocks, energy-intensive production, and lack of biodegradability.

Question 5

How does Ci 77266 \ Nano\ work chemically?

Accepted Answer

This material is an insoluble particulate colorant rather than a dissolved molecule, with primary particles in the nanometer range that commonly aggregate into larger clusters. Regulatory safety reviews commonly assess use up to 10% in finished products, with strict purity limits for certain PAH residues and restrictions for formats that could expose the lungs.