Biome Shield Toothpaste
Two natural active ingredients — paeoniflorin and quercetin — chosen for published research on the bacteria and inflammation behind bleeding gums. SLS-free, triclosan-free, fluoride-free, and it tastes like toothpaste.
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A clean that works where it matters.
Built around the biology rather than the sensory cues — which is why the ingredients most tubes carry to generate lather simply weren’t needed.
Ingredients with integrity.
Two natural actives, each chosen for published research on exactly this problem — and named on the carton rather than buried in a list.
A naturally occurring compound from the root of the peony, and the centre of Professor Rabie's own research into plant-derived actives.
A flavonoid found widely in fruits and vegetables, and among the more extensively studied natural compounds in the literature.
1Paeoniflorin is a naturally occurring compound from the root of the peony, <em>Paeonia lactiflora</em>, and a focus of Professor Rabie's published research into plant-derived actives. Described as studied, not proven.
2Quercetin is a plant flavonoid found widely in fruits and vegetables; peer-reviewed work has examined its activity against <em>Porphyromonas gingivalis</em> and <em>Aggregatibacter actinomycetemcomitans</em>, species associated with periodontal disease. Studied, not a treatment claim.
What people are saying.
A 40-person user survey.
Mean of 40 responses, on a five-point scale.
- Ease of use
- 5.00
- Freshness and taste
- 4.94
- Perception of natural ingredients
- 4.88
- Self-reported change in gum symptoms
- 4.82
- Improving oral hygiene
- 4.71
Median and mode were 5 on every measure. Ease of use was unanimous.
Ratings are what respondents reported about their own experience. They are not clinical measurements and describe perception rather than outcome.
Frequently asked questions.
Reasonable questions, answered plainly.
90-day money-back guarantee.
Unopened tubes can be returned within 90 days of delivery, in their original packaging, for a full refund of the product cost. Once a tube has been opened we can’t take it back — toothpaste is a hygiene product.
Shop Biome Shield →How it compares.
Against the two categories it sits beside on the shelf — compared by what each is formulated with, not by outcome.
Contains paeoniflorin and quercetin
Targets harmful bacteria selectively3
Natural active ingredients
Suitable for long-term daily use4
| Conventional toothpaste | Chlorhexidine rinse | ||
|---|---|---|---|
| Contains paeoniflorin and quercetin | Yes | No | No |
| Targets harmful bacteria selectively3 | Yes | No | No |
| Natural active ingredients | Yes | No | No |
| Suitable for long-term daily use4 | Yes | Yes | No |
3Selective describes the formulation approach: two actives chosen for published research on specific harmful species, rather than a broad-spectrum antibacterial agent. Described as studied, not proven.
4Chlorhexidine rinses are indicated for short courses: their product labelling and prescribing information advise against extended daily use, citing tooth staining and taste disturbance. A statement about labelled usage, not about effectiveness.
First order