Cantu Shea Flat Iron Spray 5 oz: Cantu Shea Butter Flat Iron Spray is made with pure Shea Butter to condition hair and protect against heat damage. Cantu Shea Butter Flat Iron Spray is a pre-treatment that can be used on all hairstyles to prevent heat damage from use of hot iron styling tools, while adding a light hold and reducing frizz for softer, smoother results.