I’ve never been keen on using powdered laundry detergents and this is exactly why. It didn’t fully dissolve and left white powder marks on my clothes. Smells pretty good though and is quite expensive

I was disappointed with this. Even with a;modt boiling water in a container I was unable to get the powder to dissolve to prevent it leaving residue marks on the fabric. I tried using less powder than than instructed and it made no difference.
I have found that Fab states more powder than is needed for most loads. Reducing it by half made no difference to the residue left on the fabric. I put similar fabrics in two different loads, then tried handwashing something smaller. NOT a good result for any of them.

I don’t know what it is whether the ingredients are not powerful enough but this powder just doesn’t clean as compare to other brands. It always comes out as if it was under cleaned and still looking slghtly dirty to me . For this , I don’t buy this item anymore .