Pinterest Fail

Today I made translucent powder for either over your foundation or just as is. Anyways I used 1/2 tablespoon of cornstarch, 1/8 tsp cocoa, and 1/4 tsp of baby powder. The recipe calls for 1 tsp of the baby powder but I didn't use quite that much. I got it all mixed up. I also added a wee bit more cocoa to get more color. I then put on my face and about 20 minutes later my face itched like mad. FAIL!