noun
coloring agent; colorant; food coloring
A substance added to food, cosmetics, or industrial products to impart color. Often used in regulatory or technical contexts.
See also: 着色料
この食品には合成着色剤が使われています。
This food product uses synthetic coloring agents.
化粧品の着色剤は安全性が厳しく審査される。
Colorants in cosmetics are strictly evaluated for safety.