I happened to try a gel with soy protein and my hair loved it. Unfortunately the gel had a change in the ingredient list and the new formula didn't agree with my leave in : (. I have read so many things about the dangers of soy products and consuming it except for the traditionally prepared fermented products. I was just wondering if anyone has used soy butter because it seems to be worth a try as my hair likes soy but if I wouldn't consume it how can I put it on my hair?