Kérastase Curl Manifesto Curl Defining Gel-Cream is a medium-hold gel for curly, very curly and coily hair that combines the hydration of a cream with the hold of a gel for 24 hours anti-frizz and humidity protection. This curly hair gel defines and enhances your curls’ natural pattern while providing softness, shine, and hold without any crunch. Say hello to bouncy, defined curly hair!