During many decades, the behavior of fossil-based polymeric materials has been intensively studied. However, in recent years, bio-based polymers have gained (commercial) interest. One of the currently most available bio-polymer is poly(lactic acid), an aliphatic polyester used as a renewable alternative to petro-derived polymers, exhibiting biodegradability and compostability properties under defined circumstances. However, despite its valuable and attractive properties, there are still some key aspects that need to be optimized in order to provide an industrially viable alternative to the fossil-based polymers: its extremely slow crystallization compared to the industrial needs, its relatively low melt strength level and restricted thermal and barrier properties inhibit its widespread use. Polymer crystallization kinetics is a very important parameter when trying to reduce production cycles. During decades, heterogeneous nucleating agents have been industrially used to improve nucleation. PLA is not an exception. Different research groups have experimented different nucleating agents, including PLA stereocomplexes. Furthermore, industry is highly interested in high melt strength polymers, because of their good processability which facilitates the use of current processing techniques, such as fiber spinning, film blowing and extrusion. In order to resolve the two main technical PLA issues, it is necessary to explore new ways of enhancing PLA melt strength and crystallization kinetics. This work proposes the use of compounding materials with similar chemical structure to PLA, which facilitates interaction, and that do not compromise the bio-attributes of PLA.