Inclusion Criteria:  BPD diagnosis according to DSM-IV criteria, evaluated through a SCID-II structured interview. History of suicide attempt or self-harm operationalized as at least two episodes of suicide or self-harm in the last 24 months Provide signed informed consent to participate in the study. Participant has not received more than 8 weeks of DBT in the past 24 months.  Exclusion Criteria:  Fulfill diagnostic criteria for psychotic disorders classified in ICD-10 (F20-F29), evaluated through the MINI interview. Diagnosis of Antisocial Personality Disorder evaluated through the SCID-II. Active substance use disorder within the last 3 months, assessed by ASSIST. Harmful use or problem dependence on alcohol assessed through AUDIT. Meet criteria for Bipolar Affective Disorder type I assessed through the MINI Mania module. Significant cognitive impairment assessed through Moca (Moca> 21). Diagnosis recorded in the clinical record of intellectual-cognitive disability. Recording in the clinical record of medical or surgical problems that could imply a probable hospitalization within one year of the start of the study (for example, cancer, coronary heart disease, etc.).