"Red hair is definitely more daring and bolder than blonde or brunette tones, so it gives women the ability to stand out from the crowd," explains Weir. "Fashion is also experiencing a colour come-back, with block colour palettes or deep burgundy, burnt orange and crimson red featuring prominently in the latest RAFW collections. I think this fashion trend is influencing women's hair colour choices and allowing them to be more experimental with colour, rather than the very safe natural tones we have been experiencing the past few seasons."
While fiery hair is definitely a striking look, it's also one of the hardest to pull off. "If done incorrectly it can make you look washed out and tacky if the colour is not vibrant and glossy," says Weir, who also advises carefully considering your skin tone so you can find a shade of red that will complement your look.
"If you have a creamy complexion, such as celebrity Christina Hendricks, you are in luck, as most shades of red will work for you, however, I recommend lighter and brighter shades so that you avoid looking too washed out," says Weir.
"Yellow-based complexions are also very versatile," Weir continues, citing Blake Lively and Drew Barrymore as examples. "This is a great skin tone to experiment with which shade of red you prefer."
"If your skin has a pink base, rather than a cream or yellow base, you need to be careful as red tones can be quite unflattering," warns Weir. "If you do have a pinkish complexion try a shade of red that is browner based."
[[vid:mm:25039658]] Watch Blake Lively debut her red hair for the first time at the TIME 100 Most Influential People party.VISIT THE KERATINOLOGY STUDIO.