Great hair doesn’t come easy — especially once you hit the flat iron and dabble in hair coloring or weekly blowouts. A beautiful mane requires maintenance, whether it’s a standard root touch-up or finding the perfect shampoo that works for your hair type. If you’re like us, you’ve searched high and low for everything from the right blow dryer to the best colorist in town to keep your locks in check. It’s safe to say that we’ve had our fair share of DIY mishaps in addition to life-changing salon results and everything in between. With age comes wisdom! And when it comes to great hair, here are 10 hair tips and secrets straight from the pros that every woman should know by the time she’s 30.