Sodium Borate
Reviewed by Kate · Last updated 14 Aug 2026
Also known as: Borate
Sodium borate is a compound used in cosmetics in small
EWG Safety Score
What Is Sodium Borate?
Sodium borate is a compound used in cosmetics in small quantities primarily as a pH adjuster. In larger amounts, due to its high pH, it can be a significant skin sensitizer.
Regulatory information
Standardised cosmetic-ingredient identifiers used by regulators.
Show identifiers
- INCI Name
- SODIUM BORATE
- INN Name
- sodium borate
- EC Number
- 215-540-4 (both)
- Pharmacopoeia Name
- borax
- Function
- Buffering
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