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INCI name

HYDROXYAPATITE

Hydroxyapatite

AbrasiveBulkingOral careSkin conditioningreviewed

A calcium phosphate mineral used mainly in oral care.

What it is

Hydroxyapatite is a calcium phosphate mineral. According to CosIng it can be obtained from pearl oyster shells, salmon bones or phosphate rock, or made synthetically. CosIng lists it as abrasive, bulking, oral care and skin conditioning. It is regulated in Annex III of the EU Cosmetics Regulation.

Where it is used

Found mainly in toothpastes and mouthwashes, and occasionally in skin care and make-up.

Limits of interpretation

The INCI list shows which ingredients are present, not how much of each. Above 1%, ingredients are listed in descending order of weight; below 1% the order is free.

The Annex III entry covers its use in toothpastes and mouthwashes; see the EU regulation section for the applicable limits. The INCI name does not reveal its source.

Functions

Abrasive
Removing unwanted tissue or foreign materials from various body surfaces, including mechanical tooth cleaning and/or gloss improvement.
Bulking
Non-reactive (chemically inert), solid ingredients that dilute other solids and/or increase the volume of cosmetic products.
Oral care
Providing cosmetic effects to the oral cavity, e.g. cleansing, deodorising, protecting.
Skin conditioning
Maintaining the skin in good condition.

EU regulation

EU · Annex III, entry 372Hydroxyapatite
Product type
(a) Toothpaste (b) Mouthwash
Maximum concentration
(a) 10 % (b) 0,465 %
As of
3 November 2026 · (EU) 2024/858

Scientific opinions (SCCS)

Opinions of the EU Scientific Committee on Consumer Safety that mention this ingredient. They assess specific uses and concentrations; read the opinion for its scope.

Products with this ingredient (55)

Check a full ingredient list