Their age

“First things first, I’m using this thing to make me younger” said Bulma.

Chi-Chi looked at herself in the mirror “I’m not getting any younger either so that’s a good starting point”

The two women were humans with Saiyan husbands who never seem to age while both of them are in their fourties’ and both of them had children which left their bodies not as fresh as they use to be.

The two were desperate to appear younger