Actress Ku Hye-sun has addressed criticism over the price of her patented hair roller, ‘KOOROLL.’
Ku wrote on her social media on the 5th that KOOROLL “removes more than 80% of the plastic” used in conventional round hair rollers. She said that unlike round rollers, which can tangle with hair and become dirty, KOOROLL can be unfolded to remove hair easily and then returns to its original shape.
She added that the product is durable and “can be used permanently.” Ku said the initial production run was small, raising costs, and that “for that reason the price is currently on the high side,” but she plans to offer discounts and other promotions so consumers are not burdened. She also promoted the product, saying, “If you consider the environment, choose ‘KOOROLL.’”
Debate flared online after Ku shared a link to the official sales website along with pricing information. Typical hair rollers generally cost about 400 to 500 won, and even some higher-priced products are often in the 4,000 to 5,000 won range.
Ku recently received a master’s degree in engineering from the Graduate School of Science Journalism at the Korea Advanced Institute of Science and Technology, known as KAIST. KOOROLL was selected as a recipient of South Korea’s Excellent Patent Award in 2025.
* This article has been translated by AI.
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