Chlorhexidine digluconate is a broad-spectrum cationic biguanide antiseptic used in skincare and topical formulations to kill bacteria and prevent microbial contamination. It is commonly found in cleansers, wound care products, and acne or antiseptic preparations.
| Reported effect | How often | Notes |
|---|---|---|
Contact dermatitis / skin irritation | Common | Localized redness, itching, or dryness, particularly with frequent or concentrated use. |
Allergic contact dermatitis (sensitization) | Uncommon | Delayed hypersensitivity reaction confirmed by patch testing in some users. |
Mucosal irritation | Uncommon | Stinging or burning when applied near eyes, mucous membranes, or broken skin. |
Anaphylaxis / immediate hypersensitivity | Rare | Serious IgE-mediated reaction reported mainly with mucosal or wound exposure; medical emergency. |
Ototoxicity and ocular damage | Very rare | Reported with inadvertent contact to the middle ear or eye at high concentrations; avoid these areas. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
Peer-reviewed papers on this ingredient, via PubMed.