New Zealand business Grin Natural has created a 100 percent natural toothpaste using natural ingredients sourced exclusively from New Zealand, and garnered a great response.

"We have been overwhelmed with the positive reception this natural product has received. More and more Kiwi's are investing in products which are good for their overall health rather than chemical products which may be harmful to them in the long term," says Grin Natural Marketing Manager, Tara Tan.

This comes as no surprise, as a study by the Global Industry Analysts has found that there is also an increasing demand globally for natural oral care products.

Toothpaste has set a precedent over the years for containing chemicals such as Sodium Lauryl Sulphate, which research has recently shown only serves to create foam, rather than be of any oral benefit.

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Other research has also raised debate, suggesting that fluoride may caused Flourosis - the motting of the enamel of teeth - in some children.

New Zealand'd Massey University has now conducted its own study, testing the 100 percent natural ingredients of Grin Natural toothpaste against common oral bacteria, and found six of the seven components were "extremely effective" in fighting bacteria.

"We found that spearmint, peppermint, fennel, menthol, manuka tree oil and propolis were all effective in inhibiting the growth of harmful oral bacteria for more than 48 hours," says Dr Tony Mutukumira, Massey University Senior Lecturer.

Grin Natural says it will continue its commitment to creating its product to keep up with market demand.

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