The best hair products and styling tools can transform your hairstyle. Our editors hunted down everything from a life-changing shampoo and conditioner to the most transformative curling wand, hair dryer and flat iron. Looking for a keratin treatment to get the perfect Brazilian blowout or the best beach waves spray, hairspray or dry shampoo to create super-sexy hair? Expert hairstylists share their top hair tips, which reveal how to treat your curly hair or straight hairstyle, whether your hair is thick or thin, dry or oily. Plus, learn how to grow hair faster than you'd ever imagine.