Potion of youth not working

"niko;12661236" wrote:
I had 28 days before becoming an elder. I purchased the potion of youth. I now have 26 days before becoming an elder. Am I doing something wrong?



I also tried the other potions and none seem to modify my mood. I am playing on the long mode.



Please advise.

Had your Sim just had a birthday? If you take it at the beginning of the life stage, it really doesn't change anything because you're already at the beginning. The benefit is when you're, say, just a few days from becoming an elder and then take it; it takes you back to the beginning of the adult life stage.

Edit: And yeah, be sure you actually drink it.