How do you wash your hair and keep it shiny for a month?

To keep your hair shiny for a month, wash it with a gentle, sulfate-free shampoo to avoid stripping natural oils. Follow up with a nourishing conditioner, focusing on the ends to maintain moisture. Limit washing to 2-3 times a week to preserve oils, and incorporate a weekly deep conditioning treatment or hair mask. Additionally, using a heat protectant before styling and minimizing heat exposure can help maintain shine.