| Vegan? Maybe | Vegetarian? Maybe |
Classifications are made based on the available commercial supply of the ingredient, and are made based on the criteria on our classifications page.
Commercially available hydroxyapatite may be vegan depending on the source and may be vegetarian depending on the source.
Hydroxyapatite is a mineral form of apatite which makes up a large fraction of the weight of bones. It can be artifically synthesized via several methods, but at least one article online suggests it may also be extracted from biological sources.