The frequency of deep conditioning treatments depends on your hair type, texture, and overall condition. In general, it's recommended to do a deep conditioning treatment once every 1 to 2 weeks. If your hair is dry, damaged, or chemically treated, you might benefit from more frequent treatments. However, if your hair is relatively healthy, you can space out treatments to every 2 to 4 weeks. Pay attention to your hair's needs and adjust the frequency accordingly for the best results.