If you’re not looking to spend a fortune on a bright white Hollywood smile, shoppers are raving about these £20 dentist-approved whitening strips which give ‘amazing instant results’ without the nasty sensitivity.

Formulated with industry-leading ingredients and backed by science, the HeySmile Whitening Strips help break down stains accumulated over time for fast results after just one application.

The pack of 28 strips which are on sale for £19.99 down from £29.99 contain 14 strips…