Lysyl Ornithine

INCI: LYSYL ORNITHINE

CAS Number
788121-81-3
Function
Skin conditioning agent (dipeptide of L-lysine and L-ornithine)
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Permitted โ€” not prohibited or restricted; no specific CIR monograph. Amino acid peptides reviewed favorably in CIR group assessments.

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

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
low
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Lysine Thiazolidine Carboxylate

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Concern Level: Low

Frequently Asked Questions

Is Lysyl Ornithine safe in cosmetics?

Lysine Thiazolidine Carboxylate The EU classifies Lysyl Ornithine as "permitted". Safety rating: GOOD.

Is Lysyl Ornithine allowed in the EU?

Lysyl Ornithine EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Lysyl Ornithine do in cosmetics?

Lysyl Ornithine functions as: Skin conditioning agent (dipeptide of L-lysine and L-ornithine). It is classified as a cosmetic ingredient in our database. CAS number: 788121-81-3.

What is the Margin of Safety for Lysyl Ornithine?

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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