We’re the first to confess that we will do almost anything that claims to improve the state of our hair – from homemade hair masks to expensive salon treatments.
According to research however, there’s just one thing we need to do to keep our hair happy – rotate our shampoo.
Dr Nicola Rogers is an assistant clinical professor of dermatology at Tulane University School of Medicine in New Orleans and she has confirmed the effectiveness of this advice to the Wall Street Journal.
This tip is said to be especially useful in the colder, winter months when our hair can be dryer than normal. This is because the majority of shampoos on the market contain sulfate. Dr Rogers says this has a negative charge, which can contribute to static electricity.
Because of this, it is recommended that we swap our usual shampoo for a formula that contains nourishing ingredients like domethicone or glycerin. This helps to keep our hair hydrated, less static and more shiny.
In the summer however, our hair benefits from a more clarifying shampoo. During warmer months we sweat more, so hair becomes greasy more quickly. Shampoos that contain sulfur are therefore more appropriate in summer.
Dr Roberts also says it’s helpful to rotate our shampoo if we develop dandruff or change our diet. Having said this she did debunk the myth that we need to rotate our shampoo every few weeks to stop our hair becoming resistant to the ingredients. She points out that as our hair is not a living thing, it cannot become immune to ingredients.