CI 77007 — answers to ultramarine blue
Appears in 2 scanned products.
A blue pigment, either mined from the mineral lazurite or manufactured synthetically to the same chemical structure, composed mainly of sodium aluminum sulfosilicate.
Why it’s used
It is used to add blue coloring to soaps, bath products, and cosmetics.
What the evidence says
Ultramarine is an approved colorant in the US and EU for cosmetic use and has no credible safety concern at levels used for coloring. It can degrade and release hydrogen sulfide odor if exposed to acidic conditions, which is a formulation stability issue rather than a toxicity one.
Context
Used in both rinse-off and leave-on color cosmetics; stability, not safety, is the main formulation consideration, particularly in low-pH products.
Educational information, not medical or safety advice. Consult a professional for allergies or medical concerns.