Tooth enamel is approximately 96–97% mineral by weight, and that mineral is mainly hydroxyapatite. Biorepair Plus Sensitive Teeth contains 240 mg/g (24%) microRepair® zinc-hydroxyapatite—the higher concentration in our Biorepair Plus range.
As you brush, these biocompatible calcium-phosphate particles deposit onto the tooth surface, bind to microscopic enamel irregularities and support the remineralisation of early surface mineral loss. The formula also helps reduce sensitivity discomfort in 30 seconds on average, based on a 100-person study; individual results can vary.
24% microRepair® zinc-hydroxyapatite
Deposits enamel-like calcium and phosphate onto the tooth surface
Supports enamel remineralisation and sensitivity relief
Biocompatible, fluoride-free formula for twice-daily brushing
Why choose hydroxyapatite? Fluoride and hydroxyapatite both support remineralisation in different ways. Hydroxyapatite takes a biomimetic approach, supplying enamel-like mineral directly to the tooth surface. Clinical studies have found hydroxyapatite toothpastes comparable with fluoride toothpastes for remineralising early enamel lesions under the conditions tested.
Choose Sensitive Teeth for high-strength hydroxyapatite care focused on sensitivity.
Why it works for your routine
Fast sensitivity support
Helps reduce sensitivity discomfort in 30 seconds on average, based on a 100-person study.
Enamel-like mineral
24% microRepair® deposits biomimetic calcium-phosphate mineral onto the tooth surface.
Biocompatible and fluoride-free
Hydroxyapatite is the principal mineral in enamel, making this a biomimetic option for twice-daily care.
Dentist-selected oral care
Why this product earns its place
Explore the benefits, product details and practical answers that make it easy to choose with confidence.
24% enamel-like mineral for sensitivity care
See how high-strength microRepair® deposits enamel-like mineral while caring for sensitivity.
High-strength sensitivity care240 mg/g (24%) microRepair® deposits enamel-like calcium-phosphate mineral onto the tooth surface. In a 100-person study, sensitivity discomfort reduced in 30 seconds on average; individual results can vary.
High-strength enamel-like mineral care.
Tooth enamel is approximately 96–97% mineral by weight, and that mineral is mainly hydroxyapatite. This high-strength formula deposits 24% microRepair® zinc-hydroxyapatite onto the tooth surface while you brush.
Supplies enamel-like calcium and phosphate to support remineralisation.
Helps reduce sensitivity discomfort in 30 seconds on average, based on a 100-person study.
Biocompatible, fluoride-free specialist care for just £6.99.
Why buy from Onyx
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Selected by dentists
Handpicked by a private-dentist team with 100+ years of combined experience.
Unopened and unused products can be returned within 30 days. For hygiene reasons, opened or used products cannot be returned unless faulty. Any applicable manufacturer warranty is in addition to your statutory rights.
Why you'll love it
Benefits, formula and compatibility in clear, useful detail.
24% enamel-like mineral technology
Tooth enamel is approximately 96–97% mineral by weight, mainly hydroxyapatite. Biorepair Plus Sensitive Teeth contains 240 mg/g (24%) microRepair® zinc-substituted carbonate hydroxyapatite. During brushing, the biocompatible calcium-phosphate particles deposit onto the tooth surface, bind to microscopic enamel irregularities and support remineralisation of early surface mineral loss.
Fluoride and hydroxyapatite both support remineralisation in different ways. Hydroxyapatite takes a biomimetic approach by supplying enamel-like mineral directly to the tooth surface. Studies have found hydroxyapatite toothpaste comparable with fluoride toothpaste for remineralising early enamel lesions under the conditions tested.
microRepair® in actionHydroxyapatite is the principal mineral in tooth enamel. With regular twice-daily use, microRepair® deposits enamel-like calcium and phosphate onto the tooth surface and forms a temporary biomimetic coating over enamel-surface micro-scratches. Toothpaste does not treat established cavities, fractures or chips.
At a glance
The benefits, compatibility and pack contents worth knowing before you buy.
Scroll the table sideways to compare all details.
Feature
This product
Why it stands out
Formula
Fluoride-free
A clear ingredient choice
microRepair® concentration
240 mg/g (24%)
High-strength formula for sensitive teeth
Technology
Patented zinc-hydroxyapatite microRepair®
Biomimetic mineral technology
Good to know
Quick answers about fit, features and what is included.
Is this toothpaste fluoride-free?
Yes. Both Biorepair Plus toothpastes in the Onyx edit use biocompatible hydroxyapatite and contain no fluoride.
What is microRepair®?
Hydroxyapatite is the principal mineral in tooth enamel. microRepair® is Biorepair’s patented zinc-substituted carbonate hydroxyapatite: it deposits enamel-like calcium and phosphate onto the tooth surface during brushing. Sensitive Teeth contains 24%; Total Protection contains 20%.
How do the two options differ?
Sensitive Teeth is the focused sensitivity formula with 24% microRepair®. Total Protection is the versatile everyday formula with 20% microRepair®.
What should I do if sensitivity continues?
Persistent, severe or changing sensitivity can have several causes. Speak to your dentist rather than relying on toothpaste alone.
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