What is Red Dye 33 Made of and Is It Safe?
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3 min read
Red dye 33, also known as D&C Red No. 33 or CI 17200, is a synthetic azo dye derived from petroleum or coal tar sources. Its vibrant red hue is used to color a wide variety of personal care and pharmaceutical products globally. Unlike the banned Red Dye 3, Red 33 has a different regulatory history and chemical structure.
