CheckVegan

Is Ichthammol vegetarian?

Ichthammol

Vegetarian Vegetarian
Vegan Vegan

Ichthammol, also known as ammonium bituminosulfonate, is a medicinal substance obtained through the sulfonation and ammoniation of bituminous shale distillates, used topically to treat skin conditions such as eczema and psoriasis.

Also known as Ammonium Bituminosulfonate, Black Ointment
INCI name Ichthammol
CAS number 8029-68-3
EC number 232-439-0
CosIng ID 34562
Last reviewed 9 July 2026

An ingredient is considered vegetarian if it avoids components derived from killing an animal.

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.

Report an issue