Keune's Keratin Curl Lotion + Neutralizer 0 lets you create permanent curls and waves. The pack includes the keratin curl lotion and keratin curl neutralizer. The neutralizer restructures hair for forming the desired shape and texture. The curl lotion comes in three kinds of formula, different for each hair type. The formula number 0 is for hair that are thick, strong and difficult to curl. Keratin gives this curl lotion it's moisturizing and strengthening properties. It provides deep nourishment and conditioning to hair, which contributes to the long lasting creation of curls. The overall hair texture becomes shiny and voluminous.