One pound of SCI powder.
 
SCI 85% - Powder Sodium Cocoyl Isethionate can be used as surfactant for cosmetics and toiletries, especially mild shampoos, foam bath, baby products, & toothpastes. Suggested Usage Rate up to 50%.

It is also an anti-static agent in shampoos. It's an anionic surfactant derived from coconut oil that is a great foamer in hard or soft water.