The Korea Consumer Agency (KCA) has advised cosmetics brands to tighten labelling on shampoo bars, after its recent test discovered that some products did not indicate allergenic ingredients or accurately display their acidity levels.

As interest in environmental issues grows, an increasing number of consumers in South korea are choosing solid shampoo bars over liquid shampoos in plastic containers.

The KCA recently conducted a test on 10 shampoo bar products, which were evaluated by 32 certified hairdressers and professors with expertise in the beauty category. It was found that some products did not indicate allergenic ingredients on their labels.

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