I have used normal laundry powder from day 1 however if you are concerned try the sensative powders first.
Victoria ~ 3yr old beautiful twin boys
I have used cold power from day 1 and have had no problems (I wash everyons clothes together) but if your boy has sensetive skin or your washing cloth nappies alot I would continue using napisan although napisan quite expensive.
2 little darlings 29/01/03 + 17/03/05
Narelle, Eilish 5th june 2002 TTC since dec 2002
My eldest son and my husband are allergic to most washing powders, wether they be cheaper ones, or expensive ones, including OMO Sensitive. The only washing powder we use is Surf Concentrate. It is not too expensive, and we have no reactions to it. I have used this with all my children from the day they were born.
Mother of 3, Qld
or if u use a powder disolve it in a bit of hot water 1st b4 u add it into ur wash
hope this helps
DD 13/11/03 -DD 11.11.05 - DS 17.4.08