The Immortals

Ambrosia, but seeing as that requires a Potion of Youth.... You can wish for youthful energy from the wishing well, obviously not anywhere near 100% chance though. You could use the essence of life from the cow plant.
http://www.carls-sims-4-guide.com/help/immortal.php

None really seeing their is no Magic in the game yet.

Hoping for the Holy Grail, drink it, you get Immortality, Invincibility, and Eternal Youth

You can have your sim work in the science career. they will eventually be able to make the age away potion. then the cloning machine...and then they will be able to make enough age away for the whole family. you have to make the cloning machine before your sim quits the career though, because the chemistry station does not work if they are not a scientist.

there is an option in game options that you can set for played sims not to age. you can also select active household

"CrazyboutTheSims;14883447" wrote:
there is an option in game options that you can set for played sims not to age. you can also select active household

I only want just one Sim to not age.

What does the book of life do?

"Inna Minnit;14883457" wrote:
What does the book of life do?

Book of life will not keep your sim from aging...The Book of Life restores a ghost into a living sim or when a living sim reads it ... it fills up all the needs much like the moodlet solver reward potion

omg typos!! *face palm*

So....

1. Potion of Youth
2. Ambrosia
3. Scientist Career > Youth Lotion > Cloning machine.
4. Wishing well
5. Essence of Life from Cowplant.

Thanks!

Essence of Life from the Cowplant also will reset your sims age back. I only get this to work if I have two cowplants though and trap a victim in with it... the sim has to die of course.

Thanks, I missed that one.