Knowing how often to wash your hair is an important factor in healthy hair care. And many of us can feel a bit confused when it comes to finding the best shampoo regimen. The secret to really healthy hair includes tips and tricks, especially as we age and experience changes in hair texture and density. Do you have a dry scalp? Or maybe your hair gets greasy easily if you don't wash it every day. Maybe you're having a hard time finding the perfect balance between the best moisturizing shampoos that won't leave your hair greasy.