Finding a good toothpaste that is free of chemicals was tricky work. Colgate is paraben-free but a closer inspection found it does contain an anti-bacterial agent called triclosan that has also been linked with cancer. So, back to square one. The only 100 % safe option I've found so far is the Green People  organic range on offer at greenpeople.co.uk.

They offer an organic fennel, citrus and aloe vera, mint and minty cool and a few especially for children. All are 100 % natural, they're never tested on animals and they are free from sodium laurl, laureth sulphate, parabens, lanolin, phthalates, propylene glycol , alcohol, harsh foaming agents, synthetic fragrances, irritating emulsifiers, petrochemicals and colourants. This is hard to find in most toothpastes on offer on supermarket shelves. The toothpastes aren't cheap at £3.15 but buy now and you'll get 10 per cent off.