I purchased my products directly from Living Proof. I tried out both their straightening styler for thick hair and their Wave Shaping Curl Defining Styling Cream for thick hair. I appreciated that they offered varying formulas based upon hair thickness. I did not notice any discernible difference with the straightening styler, but I did appreciate the wave styling cream. After applying a generous amount of the product, I noticed that heat styling was necessary for both the straight and wave shaping creams to really be effective. The wave shaping cream provided good control, manageability, and shine while defining my waves. Both products held up well in humid conditions.