Clean you face before you use the cleanser

I received the Treatment Enzyme Cleansing Powder as a free sample from #Sampler. It is easy to apply and leaves a good feeling on my skin. The powder mixed with water formed into an emulsion and did not irritate. However my skin didn't really feel "clean" . The product was also not removing make up. I also found it difficult to judge how much the advised 1 gram is to use per application. A spoon that measures this amount would be helpful.