Will soybean oil harm my daughter's hair?

Hey my daughter has nice natural hair and I was wondering if I put soybean in her hair do I have to wash it out, because I bought some vitamin e oil and it contains vitamin e, soybean oil, and coconut oil. I was wondering, because I have been putting it on her scalp and stuff, will this cause her hair to fall it. It is natural ingredients. I am just wondering, because I have heard soybean is a protein, but it also mixed with other stuff in it, so will it still harm her?