The measurement of extraction curves near optimized conditions (140 bar/55 ◦C/0 wt.% EtOH and 190 bar/55 ◦C/0 wt.% EtOH) confirmed the trends of the statistical analysis and revealed that SFE enhances diterpenes concentration by 212–410% at the expenses of reducing the extraction yield between 39% and 79% in comparison to n-hexane extraction.