Arginine ●
TL;DR. This ingredient is primarily used as a pH adjuster and alkalizing agent, especially to neutralize acidic formulas and help gel systems form. It can also support skin and hair conditioning because it is a naturally occurring amino acid.
What does Arginine do in a cosmetic formula?
This ingredient is primarily used as a pH adjuster and alkalizing agent, especially to neutralize acidic formulas and help gel systems form. It can also support skin and hair conditioning because it is a naturally occurring amino acid.
Is Arginine clean?
From a clean beauty perspective, this ingredient is generally well-tolerated, low in sensitization concern, and not a common restricted-list issue. Its main formulation watchpoint is pH, since it can make a product more alkaline when used at higher levels.
Is Arginine sustainable?
This material is commonly made by fermentation from plant-derived sugar feedstocks, though sourcing can vary by supplier. It is readily biodegradable and does not raise meaningful persistence or bioaccumulation concerns.
Is Arginine COSMOS-approved?
It is permitted under COSMOS-natural and COSMOS-organic frameworks when made from accepted natural or fermentation-based sources. It fits Green Chemistry well when produced by fermentation, with renewable feedstocks, water-based processing, and good biodegradability.
How does Arginine work chemically?
This molecule is a basic alpha-amino acid with both carboxyl and amino functionality plus a strongly basic guanidino side chain, giving it high water solubility and strong pH influence. Typical use levels are often around 0.1% to 2%, with higher amounts used when neutralizing acidic polymers or adjusting final formula pH.
Last updated 2026-05-13