Prince of Persia

Both potions can be found on level 9 nearby each-other.

Originally Posted by RavenBlackthorn

I initially bypassed the first potion and began searching for the second potion. Keep in mind that the butterfly will not lead you to the second upside-down potion, it will take you straight to the exit which is not too far away. My advice would be to bypass the first potion, grab the Elixer of Life and continue (left and down if I remember correctly) to search for the second potion. Once you grab the second potion simply backtrack and grab the first one. You'll be in the ackward upside down mode for only 30 seconds or so.