Fillers in Laundry detergents

[liberatordeluxe]

Just curious to know how you test for fillers in detergents as they create havoc for sensitve skin etc. Attached is a photo's of Tesco 'Colour Care' liquid detergent dissolved in luke warm water. When i dissolved the liquid it went cloudy same with the liquid however when i use Stergene handwash delicate liquid it goes immediately clear. So my question is if the water goes cloudy does that mean fillers and bulking agents are present?
I do know that most washing powders are padded out with Sodium Sulfate so most are not value for money and just more 'Dirty' waste down the drain.
Be great if anyone can help.

 

[liberatordeluxe]

Here is Persil 'Colour Care' powder and again it remains cloudy even after an hour!

 

[liberatordeluxe]

This is a filler test too. I put one capful of Stergene in cold water and is crystal clear. The liquid is a opaque blue colour.