TikTok users are buzzing about "hair theory," a concept suggesting that your hairstyle - including length, colour, and texture - can significantly influence both your appearance and how others perceive you.

The hashtag #hairtheory has amassed over 500 million views, as mostly young women show off different hairstyles in their videos.

The idea is that altering your hair can completely transform your look, as seen by the countless videos and followers under the hashtag #hairtheory.

@tallulahmetcalfe3 Wait until i do this w my hair styled #fyp ♬ original sound - Nina Castanheira

According to the hair theory, the way you style your hair can affect how others view you. Anyone who has ever dyed their hair or tried on a wig can attest that people often react differently, based on your hairstyle.

There are certain haircuts that complement different face shapes. For example, for someone with a rounder face, a short, blunt cut can help elongate the face and create soft angles.

Longer layers suit someone with an oval-shaped face, creating lots of movement, and paired with a fringe is a good option.

@lala_sadii
Hair theory is realll RIGHT??
♬ som original - larissa

But it’s not just about how others see you — your hairstyle can also impact how you feel about yourself. A fresh blow-dry boosts your confidence, a new colour can make you feel revitalised, while a bad hair day can leave you feeling self-conscious. Hairstyles are a form of self-expression, reflecting our personality and style.

The trend is further being fuelled by the easy, practical tips and tricks that users can try at home, making it accessible for everyone.

So, whether you're changing your look or want to know how others perceive you, #hairtheory offers a fun and easy ways to experiment with your appearance.

IOL Lifestyle