Share a Grin: You Buy,
We’ll Donate—and Educate

Ways In Which You Can Help

You Buy, We’ll Donate—Exclusive To New World Supermarkets  

Grin Natural, the 100 percent natural toothpaste and eco-friendly toothbrush company is excited to launch Share A Grin—a nationwide social good campaign in partnership with New World. Our campaign goal is to provide 50,000 Kiwi kids in need with biodegradable toothbrushes and we need your help to make it a reality.

Buy any Grin product via New World supermarkets before September 16 and we’ll donate an eco-friendly toothbrush to a Kiwi kid who needs one. Buy one product and we’ll donate one toothbrush. Buy two products and we’ll donate two toothbrushes. The more you buy, the more we’ll donate. 

For those who aren’t able to make it to New World, the offer is also available through the Grin website.

Once you’ve made your purchase, share a photo to Facebook or Instagram using #shareagrin. This will help get the word out about the campaign and get us closer to our goal of donating 50,000 toothbrushes to Kiwi kids across the country.

Share The Campaign—Share A Grin

Apart from buying a Grin product, there are other ways in which you can help spread the message:

  • You can explore and share our educational resources (including videos and interviews) as they appear on this campaign page.
  • You can volunteer at one of our school visits.


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Watch Our Campaign Video

*Campaign Offer Terms & Conditions:

Promotional dates are 02 July – 19 September 2018. For every Grin product purchased at New World or through, Grin will donate an eco-friendly toothbrush to a Kiwi kid in need. Excludes 20g travel toothpastes and subscriptions.

Distributing Donated Toothbrushes

Donated toothbrushes will be distributed via local charities and organisations selected by New World, school events and through Eat My Lunch, New Zealand’s leading social enterprise. Since its inception in 2015, Eat My Lunch has successfully delivered over 850,000 school lunches to hungry kids.


Our Campaign Partners

New World 

New World is our official retail partner for this campaign.

Eat My Lunch

New Zealand's leading social enterprise, Eat My Lunch, is our distribution partner for donated toothbrushes.

Makaia Carr

Kiwi wellness influencer, Makaia Carr, is our campaign ambassador.

Meet Makaia Carr

Makaia Carr is a Mum of two that has been "keeping it real" in the world of health, wellness, parenting, business and all that stuff that is important but just plain hard sometimes.

A leading social influencer since 2012, Makaia has a strong and positive platform from where she comfortably shares the messages she is passionate about.

"The oral health of New Zealand children is currently in decline and tooth decay is the most common chronic disease seen in our children, so an important campaign like this is critical and important for us all to try and get behind.

"For families dealing with poverty in New Zealand, toothbrushes and toothpastes are not always easy—or a priority to purchase in their groceries. So by helping our children in need to look after their own dental health, we are giving them one area of life they can impact and ultimately feel proud, knowledgeable and on top of."

Campaign Backstory

We’ve always wanted to help New Zealanders gain access to natural oral care products that were better for them and the environment, which is the reason we started Grin back in 2015. But, it wasn’t until late last year that we became aware of the tooth decay problem that New Zealand children are currently struggling with. 

The oral health of New Zealand children is in decline. According to a recent report by independent charity Child Poverty Action Group (CPAG), Dental caries (commonly known as tooth decay), is the most common chronic disease seen in children and is one of the leading causes of hospitalisation for New Zealand children. 

The report, which is co-authored by Otago University public health specialist Dr Rob Beaglehole and oral health researcher, Prathibha Sural, highlights the direct correlation between child poverty and dental health, sheds light on the problems affecting New Zealand children and presents solutions.

For us, the ‘Share A Grin’ campaign is an essential way of contributing to alleviate such heartbreaking statistics, as we believe that every company, small or large, has the power and responsibility to create tangible positive impact.

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The Facts

Dental Health

  • Dental caries, or tooth decay, was found to be the most common chronic disease in children, and one of the leading causes of hospital admissions.
  • 40% of Kiwi kids aged 5 years old have at least one decayed, missing or filled tooth
  • 37% of Kiwi kids aged 8 years old have at least one decayed, missing or filled tooth
  • Health data shows the numbers of children admitted for dental treatment in hospital jumped from an annual 4500 to 7500 in the past 15 years.
  • 30,000 Kiwi kids have at least some form or dental decay / rotten teeth
  • After respiratory conditions, dental treatments was the second-biggest cause of hospital admissions in 2016. The rate was highest among under-10s.
  • Worst affected are children from the poorest families, dentists say often resort to sharing one toothbrush among an entire family. These families are twice as likely to be hospitalised for dental disease.

Plastic Toothbrushes

  • Kiwis consume 8 million toothbrushes a year 
  • Conventional plastic toothbrushes are made from a combination of plastic material, usually derived from crude oil and rubber, and take centuries to break down.
  • Every plastic toothbrush made still exists
  • Each of us will replace approximately 300 toothbrushes during our lifetime.
  • The size of the floating plastic garbage patch in the eastern north Pacific gyre is estimated to be 1,392,400 square kilometers. That’s 5.2 times the size of New Zealand.
  • Plastic toothbrush waste generated during our lifetime will equal 36 billion kilos.

Be the first to know about new resources, school visits, interviews, campaign statistics and volunteer opportunities.

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Educational Resources

Each week, as the campaign progresses, we will be posting new educational resources below. From videos, documents, info-graphics and more, you can watch, download and share these resources to bring awareness to the oral health issues that are affecting New Zealanders. Check back once a week for new resources or sign up to our newsletter to follow the journey.

|  READ  |

|  WATCH  |


Oral health care tips 

for kids

Why make the switch to an eco-friendly toothbrush

10 tooth-friendly snacks 

for Kids

Share A Grin campaign ambassador, Makaia Carr, introduces the campaign

Interview with Eat My Lunch founder, Lisa King

Interview with oral health researcher, Prathibha Sural

Teach kids how to brush their teeth the right way with this easy-to-use guide

The Grin Brushing Chart makes brushing a game that everyone wants to play

New resources uploaded each week, throughout the duration of the campaign

Jul 2 - Sept 16

We’re Grin Natural, a 100% natural New Zealand made toothpaste brand. Back in 2013 with the surge of organic food and natural products we started to look at the ingredients in our toothpaste. Unable to find a toothpaste on the market that was 100% natural without any added chemicals we set out to make a new kind of toothpaste to treat our teeth and mouths to something better.

Grin Natural:

The Brand