Blue 1 Lake Ci 42090 ●
TL;DR. This ingredient is a synthetic color additive used to give products a bright it shade. Because it is insoluble, it is best suited to dispersed pigment systems such as powders, pressed makeup, creams, and anhydrous formulas.
What does Blue 1 Lake Ci 42090 do in a cosmetic formula?
This ingredient is a synthetic color additive used to give products a bright it shade. Because it is insoluble, it is best suited to dispersed pigment systems such as powders, pressed makeup, creams, and anhydrous formulas.
Is Blue 1 Lake Ci 42090 clean?
From a clean-beauty perspective, it is a frequent restricted-list item because many frameworks do not accept synthetic color additives unless specifically needed and legally authorized. It is typically used at low levels, but purity specifications matter, including residual salts, unreacted colorant, and heavy-metal limits.
Is Blue 1 Lake Ci 42090 sustainable?
This material is synthetically produced from petrochemical-derived aromatic feedstocks and an inorganic aluminum substrate. It is not a strong fit for biodegradability-focused standards, and manufacturing quality controls are important for wastewater and residual impurity management.
Is Blue 1 Lake Ci 42090 COSMOS-approved?
It is not permitted under COSMOS organic or natural standards for cosmetic coloration. From a Green Chemistry perspective, it has weak alignment because it is synthetic, non-renewable in origin, and not readily biodegradable.
How does Blue 1 Lake Ci 42090 work chemically?
The molecule is an anionic synthetic organic chromophore immobilized as an insoluble aluminum-based pigment, which lowers water solubility and improves performance in dispersed systems rather than clear aqueous formulas. Use levels are shade-dependent and often below 1% in leave-on products, with higher use possible in color cosmetics where regulations allow; it is generally color-stable across typical cosmetic pH ranges but can be affected by strong oxidizers, reducing agents, or high heat.
Last updated 2026-05-13