The shark speed style professional hairdryer good for straight and wavy hair is on sale 20% off for the Amazon big spring sale! Best purchase I made for my hair this past year! it has made a huge difference in not only the strength and condition of my hair, but also how long it stays styled and the length that I can go between washes! . This hairdryer regulates the heat, never getting hotter than 230° so you will have no heat damage! It cuts your drying time in half compared to other hairdryers I have the hairdryer that’s good for all hair types but the ones that are on sale are good for straight and wavy hair. The only difference is it doesn’t come with the big diffuser. I honestly don’t use my diffuser, but if you want a diffuser, you can buy it separately. LTKWatchNow LTKSaleAlert LTKBeauty