If you put anti aging cream on a baby that makes you look a few years younger, surely it would make it look like a sperm cell, amirite?

Depends on if it's a male or female baby.

Anti aging cream is used for aging skin that could benefit from it. It's not intended for any and all skin.

Since they would be so small, you wouldn't be able to see them, making it invisibility cream.

Then you can shove it back up into her. And wait for another kid

okay so that's not how that works lol

If that would work, it's probably for the best..