A salon in Abu Dhabi has been shut after the staff was found mixing petroleum material with henna in order to give it a strong colour.
According to local dailies, Abu Dhabi Municipality officials conducted several raids at the salon following numerous complaints it received.
But they could not prove the allegations.
Later, in an undercover operation one of the officials visited the salon as a client and asked for henna application.
And the agent was successful in catching the staff mix harmful substances to the henna.
Several clients reported to the municipality that they had suffered side-effects such as inflammation after the henna application.
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