The authors carried out a systematic search in main data bases and a methodological content review by paired authors about selected publications. The authors reviewed and analyzed 332 articles about informal caretakers and they chose 182 which complied with their selection criteria. The profile for informal caretakers of persons aged over 65 in Spain is identified as well as the type of care he/she provides. It is worth highlighting the introduction of a new factor in caretaking for the elderly during recent years at a national Spanish level, and since the 1990s on an international level: paid non-professional immigrant caretakers. This phenomenon makes the different traits which ethnic minority caretakers have reflect on the dynamics and the results of this study.