If you place into a glass baking dish an amount of baking soda, heat it at 500 for about 90 minutes and then pour it into your shampoo along with the milk of magnesia, you will have a stronger mixture. I did a version of this recipie and it stretched my hair. I was pleased with the results because it got all of the snarls off of the ends of my hair.
I had to conduct a bunch of research and become a quickstudy of chemestry so use this mixture at your own risk. When I added shampoo to my mix, it smelled just like relaxer--ammonia smelling. Sooo.....