Yellow 5 Lake (CI 19140)
Ingredient Info
Yellow 5 Lake is a synthetic colorant used to give skincare products a yellow or golden hue. It's the insoluble form of Yellow 5 (Tartrazine), made by binding the dye to an inert mineral base so it doesn't dissolve in water. It serves purely cosmetic purposes—to make the product visually appealing—and has no active skincare benefits.
Potential concerns
- May trigger allergic reactions or sensitivity in people with tartrazine sensitivity (estimated 0.1-0.2% of population)
- Can cause itching, hives, or contact dermatitis in susceptible individuals
- Potential concern for people with aspirin sensitivity, as tartrazine may cross-react
Science: Yellow 5 Lake is approved by the FDA and EU as a cosmetic colorant and has a long history of use with a strong safety profile in the general population. Limited peer-reviewed data exists specifically for Yellow 5 Lake in skincare, but it is considered a low-risk ingredient for most users when used as a colorant.
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