Q&A: - What is Curl Expression? Curl Expression is the first professional care program developed in collaboration with curl experts to provide optimal moisture for your curls and waves. The products in the range contain glycerin, urea, and hibiscus seeds. - Who is Curl Expression for? Curl Expression is designed for women with wavy, curly, and frizzy hair. The s-shaped root of the hair prevents the natural formation of oil along the hair lengths, resulting in less moisture for the entire curl. Curl Expression delivers exactly the necessary moisture. - What are the main ingredients of Curl Expression? The main ingredients of Curl Expression are glycerin for long-lasting moisture, Urea H for softer hair, and hibiscus seeds for added strength, shine, and smoothness.