A video has emerged from the US of a mother scaring the pants off her toddler daughter with her face mask.

According to the filmer, her daughter Bella kept interrupting her and her sister as they were trying out their new Korean pore cleansing mask, so they decided to give her a fright.

In the video, which was filmed in Washington, D.C. earlier this week, the filmer and her sister open the bathroom door and approach young Bella with their faces caked in the black mask.

Poor Bella takes one look at the two women, and runs for her life to the living room and onto the lap of her grandmother.

Although she was terrified at first, she soon calmed down when she realised it was only her mum and auntie underneath the beauty treatment.

My sister and I were trying out a black Korean pore cleansing mask and my daughter kept interrupting, so we decided to scare her with the mask. Once we were ready for her, we popped both of our faces from behind the door and my sister screamed. Bella (my daughter) paused then sprinted, while screaming for her life from the bedroom to the living room and hopped on my mom.