Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to help damaged hair [title] Wash your hair less often. [step] Shampooing your hair too often can strip it of its natural oils. Because damaged hair is already dry, you don't want to dehydrate it any further.

Ending1: To minimize the time you have to wash it, consider using a low-maintenance shampoo. [substeps] Check a product label to determine how often you have to wash your hair. Ending2: Because damaged hair is therefore more susceptible to oil, you should make sure that it is washed by itself as often as possible. [substeps] If you don't have access to a shower, you don't have to wash it most days of the week. Ending3: Rather, let your hair dry enough every time you shampoo it. Repeat this process every two to three days until you know that your hair is dry enough to wash using shampoo. Ending4: If you're used to washing your hair every day, switch to every other day. If you usually wash every other day, switch to every third day.

Answer format: ending1/ending2/ending3/ending4