Lysine HCl
L-Lysine monohydrochloride (essential amino acid salt)
HCl salt of L-Lysine; more stable and water-soluble than free base. Essential amino acid critical for collagen cross-linking via lysyl oxidase pathway. HCl counterion is benign at cosmetic concentrations.
Function & Common Use
Skin conditioning / Antistatic / Hair conditioning / Supports collagen cross-linking
Amino Acid
Hair care products, moisturisers, skin conditioning serums, amino acid complex formulations
Natural / Biotechnology
Concentration Limits
No limit
No specific maximum
No specific maximum
No limit
Pregnancy: No specific restriction identified
Frequently Asked Questions
Is Lysine HCl safe to use in skincare?
Lysine HCl has a Low concern rating from The Clean Sheet. HCl salt of L-Lysine; more stable and water-soluble than free base. Essential amino acid critical for collagen cross-linking via lysyl oxidase pathway. HCl counterion is benign at cosmetic concentrations.
Is Lysine HCl allowed in India?
Lysine HCl is currently classified as "Permitted; amino acids are generally recognised as safe under Cosmetics Rules 2020; no restriction" under Indian cosmetics regulations. No concentration limit is specified for India.
What is Lysine HCl used for in cosmetics?
Lysine HCl functions as: Skin conditioning / Antistatic / Hair conditioning / Supports collagen cross-linking. It is commonly found in: Hair care products, moisturisers, skin conditioning serums, amino acid complex formulations.
Can Lysine HCl cause an allergic reaction?
Yes. Lysine HCl has an allergen flag (None identified). If you have sensitive skin or known fragrance/contact allergies, patch-test products containing this ingredient before full use.
Regulatory Status
EU Annex: None
Identifiers
Want to check if your product contains Lysine HCl?
Analyse a Product