Actress Lindsay Lohan has denied claims she has been hired as a representative of Ariva lozenges.

The Mean Girls star, 21, has been snapped with the sweets - an aid to help quit smoking - on numerous occasions in the last few weeks, prompting reports she has been signed up to advertise the product.

But a representative for the star has dismissed the rumours, saying: "Lindsay has not been paid to endorse Ariva. She is just a fan and is using it to help cut down her smoking as she is currently in the studio recording tracks for her third album."