Nexxus Emergencee is a quick and easy way to add protein/strength to your hair. I used Emergencee a lot to help me transition from chemically relaxed to naturally curly hair. (Hair is weak at the line of demarcation between the relaxed ends and natural roots and therefore prone to breakage.) It is easy to incorporate Emergencee into your routine. All you have to do is shampoo, rinse, apply the Emergencee and leave it on for about sixty seconds. Afterwards you follow up with a good moisturizing conditioner. There is a noticable appreciation in the strength of my hair strands. It also leaves my hair shiny and there is a lot less hair in my comb while detangling. The results last for a few weeks to a couple of months. It is not very expensive and the bottle lasts for 5-7 applications depending on the length of your hair.