Intelligence · Ingredients

The ingredient narratives reshaping clean beauty.

preservative
Open full file →

1,2-Hexanediol

aka hexane-1,2-diol · 1,2-dihydroxyhexane

Paraben alternative and multifunctional preservative booster widely adopted in K-beauty and clean-positioned formulas. Combines antimicrobial activity with humectant and solubiliser function.

Benefits
  • Broad-spectrum antimicrobial against bacteria and yeast
  • Mild humectant
  • Solubilises actives and fragrance components
  • Enhances co-preservative efficacy
  • Good tolerability at cosmetic concentrations
Example uses
  • Water-based peptide/PDRN serums
  • Essence and toner formulations
  • Sheet mask solutions
  • Lightweight gel moisturisers
  • Mist sprays
Formulation notes

Effective pH 4–7; best paired with other preservation systems. May affect viscosity in polymer-thickened systems at higher loads.

Watchouts

Above 2% can cause transient irritation in compromised-barrier skin. Rare contact dermatitis documented.

Clean beauty perception

Accepted as paraben-free option though synthetically derived. Some brands misattribute botanical provenance.