Is Lysine safe in cosmetics?
Lysine has a safety rating of "EXCELLENT" in our database. EU status: permitted. US status: permitted.
EXCELLENT
Cosmetic Ingredient
Lysine
INCI: LYSINE
Lysine (CAS 56-87-1 (L-Lysine)) is a cosmetic cosmetic ingredient functioning as Hair conditioning, skin conditioning, antistatic. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database.
View industrial chemical safety profile for CAS 56-87-1 (L-Lysine) →
Function
Hair conditioning, skin conditioning, antistatic
Editorial assessment
EXCELLENT
Preliminary editorial note — not a computed safety verdict.
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
GRAS (Generally Recognized as Safe) for food use; permitted in cosmetics under 21 CFR 182/184
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Lysine.
Calculate MoS for your specific formulation with the MoS Calculator.
Editorial summary
Preliminary editorial summary for Lysine — not a computed safety verdict. See the sourced toxicological data above.
Frequently Asked Questions
Is Lysine allowed in the EU?
Lysine EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Lysine do in cosmetics?
Lysine functions as: Hair conditioning, skin conditioning, antistatic. It is classified as a cosmetic ingredient in our database. CAS number: 56-87-1 (L-Lysine).
Compliance Tools
Check Lysine 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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