Intelligence · Ingredients

The ingredient narratives reshaping clean beauty.

Alcohol Denat.

aka denatured alcohol · ethanol denatured · SD alcohol

Standard vehicle and antimicrobial in fragrance formulations with mature safety record. Remains controversial in clean-beauty despite evidence.

Benefits
  • Solubilises fragrance and lipophilic actives
  • Antimicrobial
  • Creates lightweight fast-absorbing textures
  • Astringent — temporary pore-tightening
  • Enhances percutaneous absorption of co-actives
Example uses
  • Fine fragrance carrier
  • Astringent toners
  • Hair sprays
  • Micellar waters
  • Skin prep formulations
Formulation notes

At >30% disrupts stratum corneum lipid organisation and elevates TEWL. At fragrance-level concentrations barrier disruption is transient in intact skin.

Watchouts

Chronic high-concentration application has documented barrier-disruptive effects. Rosacea and atopic dermatitis individuals should avoid high-alcohol formulations.

Clean beauty perception

Frequently banned in clean lists despite mature safety data. Discourse conflates high-concentration barrier disruption with routine use.