Colleagues
Not wishing to change me tune, but upon reflection I do seem to remember that Formula 90 did admirable work for me about 18 months ago. I suppose that you can't realistically differentiate that much between a liquid and powder make-up (the product manufacterers do both for good reasons), although the effect these have on the HWE machine can be considered. So in the end, I still endorse Prochem's Extraction Pro, but enthusiastically extend my approval to Chempec's Formula 90. Like you, I Just want to do a good job at the end of the day.
Regards
Pete (JS2)