Depends on which one you’re using. I’m using Kodomo detergent & softener. Previously using Bzubzu which is 2 in 1.
I alternate between Kodomo and Bzu Bzu. Bzu Bzu is 2-in-1. Has softerner as well.
I use kodomo (blue) detergent handwash for the first 3 months.
Mummy C