From the Hispanic pragmatics field, publications such as Briz and Albelda (2013) and Albelda et al. (2014) identify a potential mitigating character in justification and explanation acts. These belong to strategies that are not uniquely limited to the presence of a causative conjunction, but also involve a determined propositional content in which other pragmatic phenomenon might occur, such as intensification (as in «I did it because I love you so much»). Continuing this line of work, this publication aims to analyze the pragmatic functions of intensifying resources found in the propositional content of the mitigating justifications and explanations in colloquial conversations of the speakers from Santiago de Chile. To this end, an inductive analysis was carried out with five audio recordings from colloquial conversations found in the AMERESCO-SCL corpus (Guerrero González and González Riffo, online). The analysis shows that intensifiers reinforce the argumentative character of justifications and explanations and, in consequence, the mitigation itself. The sub-functions found are related with the characteristics of argumentation that is present in the propositional content of the mitigating resources in study.