CCC 1242
© Libreria Editrice Vaticana Source: vatican.va
In the liturgy of the Eastern Churches, the post-baptismal anointing is the sacrament of Chrismation (Confirmation). In the Roman liturgy the post-baptismal anointing announces a second anointing with sacred chrism to be conferred later by the bishop Confirmation, which will as it were "confirm" and complete the baptismal anointing.
Read the full chapter 1. The Sacraments of Christian Initiation ¶1212–1419