Tag: Synthetic pigment

Over 95% of color additives used in food, drugs, and cosmetics are synthetic, and D&C Red No. 7, commonly known as Red 7, is a prime example. This bright, bold pigment is not sourced from nature but is a petroleum-derived substance synthetically manufactured for use in cosmetics and certain drugs.

While the mineral hematite has been used as a pigment for thousands of years, food-grade red iron oxide (E172) is now primarily produced synthetically to ensure purity and consistency. This versatile food colorant, also known as ferric oxide, imparts a strong, stable deep red hue to a variety of processed foods and pharmaceuticals.

Over 40,000 years ago, natural iron oxides were used as pigments in prehistoric cave paintings. Today, many people wonder, **what is red iron oxide made of**, and how does this substance end up coloring food and dietary supplements?.