Blue 1 Lake (CI 42090)
Blue 1 Lake is a synthetic colorant used to impart a blue hue to cosmetic products. It is a pigment formed by precipitating FD&C Blue No. 1 onto an insoluble substrate, typically aluminum. This makes it insoluble in water, which is useful for certain product formulations.
NoneColorantVeganEvidence: Medium
RiskLow 1 / 4
Irritation i1 / 4
Risk of short-term irritation — stinging, burning, dryness, redness, or discomfort. Common for strong actives, acids, retinoids, fragrances, and harsh surfactants.
Rated by SpottyLabs' ingredient methodology, independent of brands.
Things to watch
- Potential for skin irritation in sensitive individuals
- Possible staining of skin or clothing
See how this matches your skin
Find out exactly what you put onto your skin. Scan any product before you buy. Free and independent — no brand is paying us. Available on both on Android and Apple
Frequently asked questions
- What is the difference between Blue 1 and Blue 1 Lake?
- Blue 1 is a water-soluble dye, while Blue 1 Lake is an insoluble pigment. The 'Lake' form is created by precipitating the dye onto a metallic salt, making it suitable for products where water solubility is undesirable, such as oil-based cosmetics.
- Is Blue 1 Lake safe for use in cosmetics?
- Blue 1 Lake is approved for use in cosmetics by regulatory bodies like the FDA, with specific restrictions on its use in certain areas, such as around the eyes, due to potential for irritation or staining.
Spotty Labs
