Boric Acid
Reviewed by Emma · Last updated 14 Aug 2026
Boric acid may have skin soothing and restoring benefits, but it
EWG Safety Score
What Is Boric Acid?
Boric acid may have skin soothing and restoring benefits, but it is primarily used to improve stability of a formula.
Regulatory information
Standardised cosmetic-ingredient identifiers used by regulators.
Show identifiers
- INCI Name
- BORIC ACID
- INN Name
- boric acid
- EC Number
- 233-139-2 / 234-343-4
- Pharmacopoeia Name
- acidum boricum
- Function
- Antimicrobial, Buffering, Denaturant
From the Clinic
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