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

The beauty industry evolves so quickly it can be hard to keep up.

New brands emerge, makeup trends can flourish and then celebrities convince us we need the latest ‘it’ serum or lipstick, and product sales continue to boom.

So as 2018 comes to an end, in a bid to get ahead of the curve we asked a host of experts for their predictions on what’s going to be the next big thing in the cosmetics world, from skincare to sustainability.

Here’s what they had to say…

1. Tranexamic acid

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.

For most of us, trying something new in beauty might stretch to a different mascara, some false lashes or a new shade of lippy.

But in the world of Instagrammers and catwalks, there’s always something far more out-there and 2018 has been no exception – with hair turned into vases and topped with flowers, and eyebrows covering the whole forehead among the looks that emerged.

As 2018 comes to a close, here, we take a look back at seven of the year’s biggest viral beauty trends…

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…

All that glitters is not gold, they say, and that’s true for skincare as well!

Compared to gloopy grey clay that dries to a hard, crackly covering, gold face masks sure are pretty – and there are thousands of photos on Instagram to prove it.

But are these bright, shiny pastes and foils really effective – or are they just designed so that you’ll share a #maskie on social media and get more publicity for the brand?

Paris Hilton is returning to Dubai this month to launch her 24th fragrance Platinum Rush, the celebrity heiress will be at Dubai Festival City on 20th November to reveal the new scent and meet with her UAE fans.

The reality star, singer and DJ posted this message on Instagram: “Hey #Dubai. So excited to see you at the launch of my 24th Fragrance #PlatinumRush At @DubaiFestivalCityMall at Brands 4U at 4:30pm. See you there!”

Paris is currently touring the world to promote the new fragrance that is described as the perfect Christmas gift...

It’s finally here after six years in the making! Huda and Mona Kattan’s debut fragrance collection, Kayali, is launching this Friday 16th November –and it’s already on our Christmas wish list.

Kayali means "my imagination" in Arabic and is inspired by the rich heritage and simple sophistication of the Middle East. The Kayali perfume line will initially include four scents.

Hair stylists are starting to unveil their latest collections and are making predictions on the haircuts and colours that are going to be big in the next year.

Although certain outlandish designs are only destined for the catwalk, there are some bold looks that could be very influential in terms of future trends.

From subtle pastels to bold blues, these are the colours and dye techniques that the beauty experts have predicted to flood our Instagram feed very soon. So, here are the colours to copy and paste for 2019…