CheckVegan

Is Slack wax (petroleum), acid-treated vegetarian?

Slack wax (petroleum), acid-treated

Vegetarian Vegetarian
Vegan Vegan

Slack wax derived from petroleum dewaxing processes, treated with acid; regulated unless the full refining history demonstrates the source material is not carcinogenic. It is a mineral wax, not of animal or plant origin.

INCI name Slack wax (petroleum), acid-treated
CAS number 90669-77-5
EC number 292-659-8
CosIng ID 29363
Last reviewed 9 July 2026

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

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