* As a racial category: It's generally considered not capitalized as it's not a proper noun, but rather a descriptor like "black" or "Asian."
* Referring to the Caucasus region: When referring to the geographical region of the Caucasus Mountains, "Caucasian" is capitalized as it is a proper noun.
For example:
* "The study looked at racial disparities, including those experienced by Caucasian participants."
* "The Caucasian region is known for its diverse cultures and breathtaking landscapes."
It's important to be mindful of the potential for offense when using racial categories. Often, it's preferable to use more specific terms like "people of European descent" to avoid generalizations and potentially hurtful language.