Hi, My Age Is 40. I Have Been Doing Jogging

Hi, My age is 40. I have been doing jogging about 7 to 8 Km and after that some workouts as well. My coach asked me to take protein powder within 20 min of workout. I started taking Amway Nutrilite protein powder. I am finding lots of acne / pimples on my face these days. My skin type is normal. I have a doubt that it's happening because of protein powder only. As I am not taking past 1 week and suddenly my face is improved. My question is if it is due to protein powder only, then shall I replace it with something else ? And what could be the product shall I take?