This is a myth
To shampoo or not to shampoo – that is the million dollar question. While there are experts who suggest that washing your hair once a week is enough, it may not be a feasible plan in the hot and humid Singapore. Due to our weather, we sweat easily thus it is extremely important to wash our hair often, especially for those with oily hair! Not doing so may cause the excess sebum to mix with dirt on your scalp, and overtime, this could potentially lead to dandruff problems or the clogging of hair follicles!