Best Microplastic-Free Toothpaste & Oral Care UK 2026

You brush your teeth twice a day — possibly more. Over a lifetime, that is a lot of toothpaste in direct contact with some of the most absorbent tissue in your body. So it matters what is in it.

Solid plastic microbeads were banned from rinse-off personal care products in England by The Environmental Protection (Microbeads) (England) Regulations 2017, which took effect in 2018, with equivalent legislation in Scotland, Wales and Northern Ireland. Toothpaste is covered by that ban — the regulations apply to products used on the teeth or the mucous membranes of the mouth and then rinsed away. What they do not cover is everything that is not a water-insoluble solid particle. Many conventional toothpastes still contain other synthetic polymer ingredients that environmental organisations classify as microplastics, entirely legally — and you are swallowing trace amounts every time you brush.

Synthetic Polymers Commonly Found in Toothpaste

According to the Beat the Microbead campaign run by the Plastic Soup Foundation, the following synthetic polymers are commonly found in toothpaste formulations:

• PVM/MA copolymer (polyvinyl methyl ether/maleic acid) — used for adhesion to tooth enamel
• Polyethylene glycol (PEG) — used as a humectant and binding agent
• Carbomer (polyacrylic acid) — used as a thickener
• Cellulose gum — while derived from plant cellulose, some formulations use chemically modified versions
• Poloxamer — a synthetic block copolymer used as an emulsifier

These ingredients serve functional purposes in the formulation, but natural alternatives exist for each function.

Our Top Picks

Best Overall: Georganics Fluoride Free Toothpaste

Georganics uses calcium carbonate, coconut oil, sodium bicarbonate, and essential oils — no synthetic polymers, SLS, or fluoride. Packaged in a recyclable glass jar with an aluminium lid. Made in the UK. The mineral-rich formula is effective for cleaning without any of the synthetic ingredients found in conventional toothpastes. Availability on Amazon UK is intermittent — at the time of writing it is on backorder with a future dispatch date — so if you want it now, Holland & Barrett and Georganics’ own site are the more reliable routes, and the Denttabs tablets below are the closest in-stock equivalent on ingredients.

Buy Georganics Fluoride Free Toothpaste on Amazon UK

Best for Children: Green People Children’s Toothpaste

Green People offer an organic children’s toothpaste with no SLS, no fluoride, and no synthetic polymer ingredients. Certified organic. Available from Holland & Barrett and online retailers.

Best Tablet Alternative: Denttabs Toothpaste Tablets

Denttabs offer toothpaste in tablet form — you chew the tablet, then brush with a wet toothbrush. The formula uses microcrystalline cellulose (a natural plant-derived material) instead of synthetic polymers for the abrasive action. Available from Amazon UK and zero-waste shops.

Best Budget: Kingfisher Natural Toothpaste

A long-established UK brand that uses natural ingredients and avoids synthetic polymers, SLS, and artificial sweeteners. Available from most health food shops and Holland & Barrett at competitive prices.

Products We Re-Checked

Colgate Total

Colgate Total is still widely cited — including, previously, by us — for PVM/MA copolymer, a synthetic polymer once used to help the active ingredient adhere to teeth. That claim is out of date: the copolymer went out with the reformulation that moved Colgate Total to stannous fluoride, and Colgate’s current UK ingredient list shows no synthetic polymer. Cellulose gum and xanthan gum are polysaccharide derivatives, not synthetic polymers. We now rate it likely free — not verified free, because the published list is not a full formulation disclosure.

Sensodyne Pronamel

Sensodyne Pronamel is often reported to contain PEG (polyethylene glycol) humectants — water-soluble synthetic polymers whose microplastic classification is debated. We could not verify this against a published UK ingredient list, so treat it as unconfirmed and check the ingredient panel on the pack if it matters to you.

The Fluoride Question

Many natural toothpastes do not contain fluoride. This is a separate health consideration from microplastics. The NHS recommends fluoride toothpaste for cavity prevention. If you want both fluoride protection and microplastic-free ingredients, look for natural toothpastes that include sodium fluoride or stannous fluoride without synthetic polymer additives.

The microplastic concern and the fluoride question are independent issues — you do not have to choose between them.

Beyond Toothpaste: Other Oral Care Swaps

• Toothbrush: Bamboo toothbrushes with natural bristles (plant-based or charcoal-infused) replace plastic handles and nylon bristles. Note that most “bamboo” toothbrushes still use nylon bristles — truly plastic-free bristles are available but less common.
• Dental floss: Conventional floss is typically nylon or PTFE (Teflon). Natural alternatives use silk or plant-based waxed thread.
• Mouthwash: Many conventional mouthwashes contain synthetic polymers. Look for simple formulations based on essential oils and water.

Sources

1. The Environmental Protection (Microbeads) (England) Regulations 2017 — legislation.gov.uk (England instrument; equivalent legislation applies in Scotland, Wales and Northern Ireland)
2. Beat the Microbead: Check your products — Plastic Soup Foundation
3. NHS dental health guidance — NHS