Boric Acid

INCI: BORIC ACID

CAS Number
11113-50-1
Function
crosslinker in some formulations; will hydrolyze to boric acid and carries the same regulatory risk
Safety Rating
POOR

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status prohibited
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes No specific restrictions

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
low
Sensitization
none

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Boric Acid is prohibited in cosmetics in the EU due to reproductive toxicity concerns but has no specific restrictions in the US.

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Concern Level: High

Regulatory Flags

EU Restricted SCCS Review CMR endocrine_disruptor jecfa_concern

Frequently Asked Questions

Is Boric Acid safe in cosmetics?

Boric Acid is prohibited in cosmetics in the EU due to reproductive toxicity concerns but has no specific restrictions in the US. The EU classifies Boric Acid as "prohibited". Safety rating: POOR.

Is Boric Acid allowed in the EU?

Boric Acid EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.

What does Boric Acid do in cosmetics?

Boric Acid functions as: crosslinker in some formulations; will hydrolyze to boric acid and carries the same regulatory risk. It is classified as a Active Ingredient in our database. CAS number: 11113-50-1.

What is the Margin of Safety for Boric Acid?

not established The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.

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