Modern crayons are generally made with paraffin wax with color pigments. The physical properties of said crayons can be adjusted by adding various additives to the paraffin wax, as pure paraffin wax is rarely ever used for any applications due to its brittleness. 

In the case of crayon, stearic acid is added to the wax in some instances to soften the wax for better drawing properties.
spam fails_task lang_mismatch pii not_appropriate hate_speech sexual_content quality toxicity humor helpfulness creativity violence