Murad Essential-C Day Moisture SPF30. Murad Essential-C Day Moisture SPF30 is a unique daytime moisturiser that restores skin from sun damage and the impact of the environment, while also protecting against any future damage. Improve radiance, firmness and elasticity with next generation Vitamin C and the Murad`s patented Skin Repair System. Packed with antioxidants, it s not only refreshing, it s the key to beautiful, revitalised skin.