What's the noun for creamer? Here's the word you're looking for.
cream
The butterfat/milkfat part of milk which rises to the top; this part when separated from the remainder.
(standard of identity, US) The liquid separated from milk, possibly with certain other milk products added, and with at least eighteen percent of it milkfat.
(standard of identity, Britain) The liquid separated from milk containing at least 18 percentmilkfat (48% for double cream).