The most responsible advice to anyone considering teeth whitening is to consult a dental surgeon. It isn’t available for free, though, so teeth-whitening can rack up some considerable expenses.

If you want to give DIY methods a chance, you might do well to try America’s premier teeth whitening kit, “Dr George’s Dental White.” It comes with detailed instructions, 120 ml of the teeth-whitening agent, carbamide peroxide gel (enough for 200 applications), an application syringe and two dental trays which you can fashion to fit your teeth precisely. Retailing in the UK at around £22.75, it’ll save you hundreds compared to dental treatment.

And if you want to speed the process up, you can also get a special laser whitening kit for only £7.99. You can get up to 11 shades lighter in a fortnight. But read the instructions carefully – dentures and crowns won’t lighten, so don’t risk ending up with gaudily multi-coloured gnashers instead of the even dazzle you’re seeking.

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