I have always had washing powder issues with my family's skin. Bio-Zet works well and I don't think that is a 2x concentrate - I haven't bought it in a couple of months (see below!). We have also used Omo Sensitive (pre 2x concentrate) which was fine for everyone's skin but I didn't like it...I don't know why...I just didn't feel like the clothes were clean. Ironically Eco-Store gave both DD and DS eczema flare-ups.

However, I did try Radiant 2x concentrate and there has been no reaction at all. So then I tried Drive and Omo out of curiosity and the eczema started to rear its ugly head on DS so went back to Radiant, once again no problem. I personally love the smell of Radiant though, and just feel like a change at the moment but will probably stick with Bio-Zet and Radiant, depending on which is on special.

Otherwise perhaps you should look into using a liquid. A friend of mine with very sensitive skin uses Amolin with some of that Napisan in-wash liquid thrown into each wash (with a family of messy boys the washes seem to need a boost, she says) and has no skin issues and no stain issues.

And with the food stains, chuck the foody stained clothes into a bucket asap and you won't have nearly as many stain problems if the stain isn't allowed to set. I use Sard rather than Napisan in the bucket because of skin issues.