User blog comment:Willbachbakal/Singleplayer Gene Tonics/@comment-3567720-20110703141443/@comment-1330314-20110708215959

But what I'm saying is that the tradeoff on Fountain of Youth is completely skewed - after all, it offers unlimited health/EVE regeneration, so any sensible player will keep it once they get it. However, rather than having to wait and do nothing, it would be better to have some sort of limit to its effectiveness.