Tooth Structure: Enamel & Dentin
Tooth enamel and dentin are highly mineralized hard tissues, with hydroxyapatite as their primary inorganic component.
These tightly organized hydroxyapatite crystals give teeth their strength, stability, and resistance to acidic challenges.
Demineralization: Loss of Hydroxyapatite
When the oral environment becomes acidic over time, hydroxyapatite in tooth enamel begins to dissolve and is gradually lost.
This process, known as demineralization, is the starting point of early enamel damage and tooth vulnerability.
Why Replenishing Minerals Helps (But Has Limits)
Supplying calcium- and phosphate-based minerals can support the remineralization process and help address early-stage demineralization.
However, providing minerals alone does not automatically rebuild the highly ordered microstructure of natural enamel.
What Studies Show About Hydroxyapatite
Laboratory and selected clinical studies suggest that hydroxyapatite can improve enamel surface hardness and reduce mineral loss.
Under regular use conditions, hydroxyapatite-containing oral care products have been associated with positive changes in early enamel health.
What Sets Seen’s Hydroxyapatite Apart
Across our range, we use both Nano- and Micro-Hydroxyapatite - selecting the optimal format depending on the product need and user benefit.
Our Nano-Hydroxyapatite (n-HA)
is SCCS-approved in Europe, with nano rod-shaped particles that closely mimic natural enamel - ideal for targeted enamel support and remineralisation.
Our Micro-Hydroxyapatite (m-HA)
is derived from high-purity mineral sources and meets stringent international standards, including ISO 16128 and COSMOS compliance.
Explore Products with HA
Enjoy them every day for a brighter, happier smile.
What to choose? Micro-HA or Nano-HA?
Micro-HA and Nano-HA are both forms of hydroxyapatite - a mineral naturally found in teeth.
The main difference lies in particle size, which can influence texture, formulation style, and how the ingredient interacts with the tooth surface. Rather than viewing one as “better”, we see them as different approaches to everyday oral care.
At SEEN, we don’t believe oral care should be one-size-fits-all. We believe in thoughtful choices, quality ingredients, and giving people options that fit their own routines and preferences.
That’s why we carefully select the hydroxyapatite used in our formulations, with consideration given to formulation compatibility, daily use experience, and overall product design.
Safety & Biocompatibility
Hydroxyapatite is a mineral naturally found in human teeth and bones, and is widely recognised for its biocompatibility.
In oral care applications, hydroxyapatite is commonly used in formulations designed for daily use and across a wide range of age groups.