Lysine HCl ●
TL;DR. This ingredient is mainly used as a skin- and hair-conditioning amino acid salt, adding humectant character and helping support a smoother feel in leave-on and rinse-off formulas.
What does Lysine HCl do in a cosmetic formula?
This ingredient is mainly used as a skin- and hair-conditioning amino acid salt, adding humectant character and helping support a smoother feel in leave-on and rinse-off formulas.
Is Lysine HCl clean?
From a clean-beauty perspective, it is generally well tolerated, non-fragrant, and not a common restricted-list concern. Sensitivity is uncommon, though very low-pH formulas can make any charged amino acid salt feel more active on compromised skin.
Is Lysine HCl sustainable?
This material is commonly made by fermentation from plant-derived sugars, followed by salt formation and purification. It is readily biodegradable and is not associated with persistence or bioaccumulation concerns.
Is Lysine HCl COSMOS-approved?
It is generally compatible with COSMOS-natural and COSMOS-organic formulations when sourced from approved fermentation routes and documented by the supplier. Its profile fits Green Chemistry well because it can come from renewable feedstocks, is water soluble, and biodegrades readily.
How does Lysine HCl work chemically?
The molecule is a hydrochloride salt of a basic alpha-amino acid, so it is highly water soluble and carries ionic charge depending on formula pH. It is typically used at low levels in aqueous phases, and it is stable in ordinary cosmetic pH ranges, with co-formulation mainly focused on electrolyte load and compatibility with anionic thickeners or surfactants.
Last updated 2026-05-13