Get a dry matte finish and strong hold with Murdock London Matt Mud. What it does: Murdock London’s non-shine shaping clay uses Kaolin and Vitamin E for a firm hold and dry finish. How to use: For shorter hair. Rub a small amount between your fingers and apply evenly through damp or dry hair. A dry matte finish and strong hold. Rub a small amount between your fingers and apply evenly through damp or dry hair.