The last time we saw Emma Stone on the red carpet she was sporting the softly waved auburn locks that have become her trademark beauty look.

The 30-year-old has varied the colour and style of her tresses somewhat over the last few years, but has usually stayed roughly on the red/strawberry blonde spectrum. Until now that is.

Cooler weather, plus weeks of partying, bad diet and not enough sleep means winter can be a recipe for hair disaster.

So, with January's arrival, there's no better time to give your tresses some TLC.

That doesn’t mean a complete overhaul of your routine – depending on the state of your locks all it takes is a couple of tweaks to get them back to optimal condition.

SEE ALSO: Everything you need to know about cruelty-free beauty

Lady Gaga is known for her on stage beauty transformations, running the gamut from avant-garde artiste to glamour goddess and grungy rock chick.

But it’s the pop star’s latest off-duty look that has got fans excited, after her fiancé posted a picture on Instagram showing her with lilac hair.

The photo, which Christian Carino captioned ‘fountain of kindness’, shows the usually blonde singer in front of a fountain wearing a black leather jacket and Iron Maiden T-shirt, and has already got more than 19,000 likes in just a day.

A new season often makes us want to mix up our look. If you’re still wondering what change you should make, luckily Hilary Duff is here to give you some hair inspiration.

Duff is the latest celebrity to don the ‘winter white’ look, with an icy blonde hue that is perfect for wintertime.

But, before you transform your hair from dark to platinum blonde –you should know, it isn’t the easiest change to make. We spoke to the experts to find out everything you need to know if you’re also looking to make a seasonal hair switch…

The shoulder length lob of 2017 is being replaced by the blunt bob with bangs, as celebrity hairstylists have predicted the biggest hair trends of 2018.

This year your go-to trim may feel a little stale, as stats read that we’ll be bolder in 2018 with more dramatic haircuts and styles. From Katie Holmes’ lengthened pixie cut, to extra-long Char hair, 2018 will be a year of beauty extremes.

We all know what a difference good hair can make. Women (and men) will go to remarkable lengths to have healthy, shiny, and frizz-free hair. However, many of the things that we do to achieve the perfect locks i.e. dyeing, cutting, hair spraying, blow-drying can actually make hair brittle and dry.

Here are 8 common mistakes we make that can ruin our hair.

Okay, let's get one thing straight. Unless you get hair extensions or wear a wig, your hair will not grow overnight. Hair growth is a slow process, but there are a few things you can do to speed up the process.

Here are 5 tried and tested ways to make your hair grow a little bit faster than usual.

To say that girls in Dubai are obsessed with hair and makeup would be a gross understatement. Whether you're at a party or strolling through the Dubai Mall - you will see incredible hair, makeup and fashion in the city.

Here are 10 of the best hair and makeup looks we spotted in Dubai.

We are gonna keep it real with you. There is absolutely no way to fix split ends except to cut them off. No special hair mask, treatment or potion is going to make split ends whole again.

Now that you are aware of his cold hard beauty truth, let us tell you that getting rid of your split ends does not mean sacrificing the length of your hair. Say hello to hair dusting.

Kylie Jenner and her army of hair experts can pout and sulk all they want. Her blue-in-the-morning and blonde-in-the-evening hair looks are (almost) within the reach of an average Joe — all thanks to Lauren Bowker.

Known as ‘The Alchemist’ within the fashion circle, Bowker’s London-based firm, The Unseen, has patented a colour-changing technology — Fire, that reacts to the shift in temperature and environment. When we say colour change, don’t think of your regular ombre or tone variations — think BIG. Think white to black, silver to blue and black to yellow.