At the heart of humanistic psychotherapy, especially in the existential approach, lies the search for authenticity. The clinical literature reports the intensity of traumatic suffering, which may even take the form of suicidal ideation, when a being is hindered in this journey. We believe that this theme is central to the lives of trans people. In this article, we present some conditions considered to be essential for accompaniment of the gender identity research process, through the perspective of the humanistic psychology of the self, in which the capacity for self-actualization is a central element of the therapeutic work. Using a combination of theoretical essay and hermeneutic methodology, the following text will present theoretical reflections on these themes, adding the reflexivity of the authors, all three of whom work in clinical psychology (the first identifying as a transgender woman and the other two as cisgender women).