Unfortunately, the term "Foreign Peak Cream Powder 250g" is a bit ambiguous and could refer to several different products. To be able to help you find it in Gwarinpa, Nigeria, I need some more information. Here are some possibilities:

• Peak Evaporated Milk Powder (250g): This is a popular Nigerian brand of evaporated milk powder that can be used as a milk substitute in many recipes. It comes in a blue and white tin with a picture of a mountain on the front.