Is Natural Orange 6 vegan?

Lawsone (2-hydroxy-1,4-naphthoquinone), also known as hennotannic acid, is a red-orange natural dye present in the leaves of the henna plant (Lawsonia inermis), as well as in common walnut and water hyacinth. Humans have used henna extracts containing lawsone as hair and skin dyes for more than 5,000 years. It strongly absorbs UV light and reacts with the protein keratin in skin and hair via a Michael addition, resulting in a lasting stain.

An ingredient is considered vegan if it contains no animal-derived components at any point in its production.

Classifications are made to the best of our knowledge based on available scientific and regulatory sources. We cannot guarantee the accuracy of every entry, errors in the sources we draw from can always occur. This tool also cannot account for cross-contamination, which depends entirely on individual suppliers and producers. If you believe a classification is incorrect, you can report an issue.