People are shaving their heads to prove that rosemary oil helps hair growth...

On social media, rosemary oil is being used to promote hair growth and ease itchy scalps. Photo: AFP

Lately, rosemary essential oil has been causing a stir in the TikTok community. Why? This herb, traditionally used medicinally in some cultures, is said to accelerate hair growth and alleviate itching of the scalp.

Some internet users have even gone as far as shaving part of their head to show the effectiveness of the plant.