WHAT CAUSES GREASY HAIR IN WINTER?
In really cold weather, you probably wear a woolly hat or keep your hood up to protect yourself from the elements.
But wrapping up warm can cause you to sweat more, making your hair appear oilier than usual. Waxy oils from your scalp become fluid at warmer temperatures and, with sweat, move further down your hair to make the roots look greasy.
It can also put you at risk of a dandruff flare-up, since the warmer, more humid microclimate created around your scalp is perfect for dandruff-causing microbes to thrive.
Fortunately, you don’t have to give up being warm; there’s no need to avoid wearing a hat in winter. Just choose a shampoo that will tackle grease and keep dandruff at bay, like Instant Oil Control Shampoo.