How do you make a sim on sims 2 younger?

Answer 1

You can make a Sim on Sims 2 younger by buying the elixir of life in the inventory, in the aspiration gifts, it adds a few days to their life, but only use it if your Sim has an aspiration level of gold or platinum.

Answer 2

You cant make a sim younger on any of the sims they can only get older <3