thanks perry for response ,i want to make that formula by myself,i work chemist in Egypt and i have small company called (organo medicine) for cosmetics,the hair treatment which i mean for hair straightener ,the comparable products which present in Egypt are( keratin cure)(,Inoar) and global.i try to start formula which contains keratin protein 2%,ammonia 4%,cysteine HCl 3% ,monoethanolamine 10%,formalin 1.5%.