I used regular detergent and my son never had a problem with it. you can try using regular and if your baby is sensitive to it you buy baby detergent.

always use baby detergent til up to a year cause their skin is very sensitive, it's called Dreft it's the most recommended and target has an off brand version for a little cheaper but it's worth the.money and separate laundry loads for only a year vs having to take baby into the doctor for allergies or rashes or contamination from other clothes. :)

I use regular detergent and my daughter was fine. but every baby is different so I will just wait and see your baby sensitive.

It's better not to have any scent/perfume or dyes. Baby's skin is pretty sensitive at first.