Chlorhexidine Gluconate ●
TL;DR. This ingredient functions as a strong antimicrobial preservative and antiseptic active, mainly used to limit bacterial growth in water-based formulas, mouth rinses, deodorants, and skin-cleansing products.
What does Chlorhexidine Gluconate do in a cosmetic formula?
This ingredient functions as a strong antimicrobial preservative and antiseptic active, mainly used to limit bacterial growth in water-based formulas, mouth rinses, deodorants, and skin-cleansing products.
Is Chlorhexidine Gluconate clean?
From a clean-beauty perspective, it often faces restriction because it can irritate skin and mucosa and has rare but well-documented allergy concerns. It is more common in clinical or hygiene-oriented products than in minimalist daily-care formulas.
Is Chlorhexidine Gluconate sustainable?
This material is synthetic and typically tied to petrochemical and chlorinated aromatic feedstocks. It is not readily biodegradable and is a concern in wastewater because it can affect aquatic organisms at low concentrations and bind to sludge or sediment.
Is Chlorhexidine Gluconate COSMOS-approved?
It is not permitted as a cosmetic preservative under COSMOS-natural or COSMOS-organic standards because it sits outside the allowed preservative list. Its Green Chemistry fit is weak due to nonrenewable feedstocks, chlorinated chemistry, and limited biodegradability.
How does Chlorhexidine Gluconate work chemically?
The molecule is a cationic bisbiguanide salt that binds negatively charged microbial membranes, which explains its broad antimicrobial effect and its incompatibility with many anionic surfactants and soaps. It is often supplied as a 20% aqueous solution and used at low active levels, commonly around 0.05% to 0.2% in rinse-off or oral-care contexts, with best stability in mildly acidic to neutral water.
Last updated 2026-05-16