CI 16035 (Red 40 / Allura Red) vs Mica (Cosmetic): which is worse?

What is CI 16035 (Red 40 / Allura Red)?

CI 16035 (Allura Red AC) is a red azo dye that is one of the most widely used synthetic colorants in both food and cosmetics. In cosmetics it provides vivid red coloring in products for external use.

What is Mica (Cosmetic)?

Mica is a naturally occurring silicate mineral that provides a sparkling, pearlescent shimmer in cosmetics. It is either mined from the earth or synthetically manufactured (synthetic fluorophlogopite). Mica is extensively used in color cosmetics, mineral makeups, and highlighters.

Documented risks

CI 16035 (Red 40 / Allura Red): Topical cosmetic use of CI 16035 is considered safe. Systemic absorption from properly formulated rinse-off or leave-on products is minimal. Unlike food consumption (where concerns include potential behavioral effects in hyperactive children), topical cosmetic exposure does not raise the same issues. The CIR and FDA have assessed it as safe for cosmetic use. It is not a carcinogen for topical applications.

Mica (Cosmetic): Cosmetic-grade mica is considered safe. The primary safety concern is not toxicity but rather the ethical issue of child labor in mica mining, particularly in India. From a toxicological standpoint, cosmetic mica is inert and non-toxic at topical use levels. Inhalation of mica dust in occupational (mining) settings is associated with respiratory disease, but this is not relevant to consumer cosmetic use. Synthetic mica (synthetic fluorophlogopite) addresses both the child labor and purity concerns.