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Do I need to shampoo twice?
If you’ve heard of ‘lather, rinse, repeat’, you might be wondering whether there’s any truth in it. Well, it all depends on your lifestyle. If you spend a lot of time outdoors or use plenty of styling products, doubling up on shampoo can help remove build-up. If you wash your hair almost daily, then shampooing just once is good practice – because too much shampooing could strip hair of its natural, protective oils, leaving it vulnerable to damage