1,2-Hexanediol is a synthetic diol used in skincare as a humectant and solvent that also enhances the antimicrobial efficacy of formulations, often allowing reduced or preservative-free systems. It helps maintain product stability while contributing mild moisturizing properties.
| Reported effect | How often | Notes |
|---|---|---|
| Skin irritation (mild redness or stinging) | Uncommon | Generally well tolerated; transient irritation may occur, particularly at higher concentrations or on compromised skin. |
| Allergic contact dermatitis | Rare | Isolated case reports exist; considered a low-risk sensitizer compared to many traditional preservatives. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
Peer-reviewed papers on this ingredient, via PubMed.