“…However, its therapeutic applications are hindered by its low solubility [29,30], extremely light sensitivity [16,29,44], low chemical stability [16], high rate of absorption and rapid clearance from the circulation [29,44], which limits its bioavailability [16]. As for other phytochemicals, the use of nano-delivery systems has been demonstrated to be a valid strategy to overcome these limitations and increase its antitumor potential in many types of cancer, including breast [46], colon [47,48], prostate [49], skin [44,50] and lung [51] cancer.…”