Is Calcium Hydroxide vegan?
Calcium Hydroxide
Calcium hydroxide, also known as slaked lime, is a white powder produced by adding water to calcium oxide (quicklime) derived primarily from limestone. It is used as an acidity regulator, preservative, and processing aid in food and cosmetic applications.
| Also known as | calcii hydroxidum, Calcium dihydroxide, Hydrated lime, Milk of lime, Portlandite, Slaked lime |
|---|---|
| INCI name | Calcium Hydroxide |
| E number | E526 |
| INS number | 526 |
| CAS number | 1305-62-0 |
| EC number | 215-137-3 |
| CosIng ID | 32328 |
| Last reviewed | 16 April 2026 |
An ingredient is considered vegan if it contains no animal-derived components at any point in its production.
Classifications are made to the best of our knowledge based on available scientific and regulatory sources. We cannot guarantee the accuracy of every entry, errors in the sources we draw from can always occur. This tool also cannot account for cross-contamination, which depends entirely on individual suppliers and producers. If you believe a classification is incorrect, you can report an issue.