After a few minutes, take a paper towel and blot off any remaining moisturiser. They will give you much better application and control. You do not need to buy an expensive set either. All you really need is a extra large dusting brush, stiff blush or contour brush, angled eye shadow brush, and a fine lip brush. Yes, you do get what you pay for in brushes.
Expensive ones are a little better quality than cheapies.
But, if your like me, you only get a chance to use them once or twice a month. So save some money. Loose powder is messy and gets everywhere, but it is necessary for a proper makeup job. I own two types. Transparent and medium tone coloured powder.