No fungal-acne, pore-clogging, fragrance or drying-alcohol flags for Butylene Glycol in our reference data.
Butylene glycol is a small diol commonly used in skincare as a humectant, solvent, and viscosity-reducing agent that helps dissolve other ingredients and improve skin feel. It is widely regarded as safe and non-sensitizing for the majority of users at cosmetic concentrations.
| Reported effect | How often | Notes |
|---|---|---|
Mild transient stinging or irritation | Uncommon | More likely on broken or compromised skin or at high concentrations. |
Allergic contact dermatitis | Rare | Documented in patch-test studies but considered a relatively weak sensitizer. |
Redness or itching | Rare | Typically resolves after discontinuation. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
Peer-reviewed papers on this ingredient, via PubMed.