I got a 30-gram GWP of this product. I was pleasantly surprised by the foaming ability of this cleanser. It is creamy to the touch and easily produces thick ultra fine foam that is such a pure creamy joy to lather around my face and neck, rinses easily too. A pea size is all you need for the whole face so I expect my sample size to last me for a month at least. Been using for under a week only so I cannot attest to any whitening effect but I find my face squeaky clean afterwards. Have been satisfied with Clarins Gentle Cleanser before this but, after all the pleasant cleansing nights I've had with CD, I don't think I am going back there anytime soon or anytime at all. I may consider purchasing the retail size afterwards.