CI 42090/Blue 1 Lake. FIL D33009/13 ●
TL;DR. This ingredient is an insoluble colorant used to give products a bright blue shade. It is most common in makeup, toothpaste, soaps, bath products, and other formulas where a stable dispersed pigment is preferred over a water-soluble dye.
What does CI 42090/Blue 1 Lake. FIL D33009/13 do in a cosmetic formula?
This ingredient is an insoluble colorant used to give products a bright blue shade. It is most common in makeup, toothpaste, soaps, bath products, and other formulas where a stable dispersed pigment is preferred over a water-soluble dye.
Is CI 42090/Blue 1 Lake. FIL D33009/13 clean?
From a clean-beauty perspective, it is a regulated synthetic color additive with purity specifications, but many clean standards restrict synthetic dyes and their insoluble pigment forms. It is generally used at low levels, with sensitivity concerns less common than with fragrance or some preservatives.
Is CI 42090/Blue 1 Lake. FIL D33009/13 sustainable?
This material is synthetically produced from nonrenewable chemical feedstocks and is not a strong fit for renewable-sourcing goals. Its insoluble pigment form can be less mobile in water than a soluble dye, but it is not considered readily biodegradable.
Is CI 42090/Blue 1 Lake. FIL D33009/13 COSMOS-approved?
It is not permitted under COSMOS natural or organic standards because it is a synthetic colorant rather than an approved mineral or nature-derived colorant. Its fit with Green Chemistry is limited by nonrenewable sourcing, multi-step synthesis, and weak biodegradability profile.
How does CI 42090/Blue 1 Lake. FIL D33009/13 work chemically?
The molecule is a sulfonated triarylmethane chromophore made insoluble by association with an alumina hydrate substrate, which improves dispersion in anhydrous, powder, and some emulsion systems. Use levels are usually very low for tinting, often below 1% in personal care, with higher levels possible in color cosmetics depending on shade target and regulatory limits.
Last updated 2026-05-13