Is Lithium Hydroxide safe in cosmetics?
Lithium Hydroxide has a safety rating of "POOR" in our database. EU status: restricted. US status: permitted.
Poor
Cosmetic Ingredient
Lithium Hydroxide
INCI: LITHIUM HYDROXIDE
Lithium Hydroxide (CAS 1310-65-2 [^1_5]) is a cosmetic cosmetic ingredient functioning as Buffering / pH adjuster / hair straightening / depilatory agent. EU Regulation 1223/2009 status: restricted. Industrial safety data is also available in the chemical safety database.
View industrial chemical safety profile for CAS 1310-65-2 [^1_5] →
Auto-generated CPSR Part A draft with source citations
Function
Buffering / pH adjuster / hair straightening / depilatory agent
Safety Rating
POOR
Regulatory Status
EU EU Status
restricted
US US Status
permitted
US Notes
Permitted — no specific CFR prohibition; used in 16 US cosmetic products (2011 PCPC data)
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Lithium Hydroxide.
Calculate MoS for your specific formulation with the MoS Calculator.
Expert Verdict
Expert safety assessment and concern-level summary for Lithium Hydroxide.
Regulatory Flags
endocrine_disruptor
NOAEL Studies Summary
View details ->Public NOAEL study rows linked to Lithium Hydroxide by CAS number or substance name.
Studies
63
Lowest NOAEL
1.2 mg/kg bw/day
Highest NOAEL
500 mg/kg bw/day
ECHA_REACH_reach_study_results_dossiers_23-05-2023.zip
Frequently Asked Questions
Is Lithium Hydroxide allowed in the EU?
Lithium Hydroxide EU regulatory status: restricted. This is based on EU Regulation 1223/2009 and its amendments.
What does Lithium Hydroxide do in cosmetics?
Lithium Hydroxide functions as: Buffering / pH adjuster / hair straightening / depilatory agent. It is classified as a cosmetic ingredient in our database. CAS number: 1310-65-2 [^1_5].
Compliance Tools
Check Lithium Hydroxide compliance across multiple jurisdictions:
Ingredient Decoder
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Substance Compliance
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MoS Calculator
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Heavy Metal Limits
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