The Lab
Specimen No. 0142
ClearedDerivedhumectantpreservative

Caprylyl Glycol

caprylyl glycol · 1,2-octanediol · caprylic glycol

A glycol-based humectant with mild antimicrobial properties, often used as a preservative booster. The CIR affirms safety with low irritation and sensitization potential at typical concentrations (0.1–2%). Frequently paired with phenoxyethanol to reduce needed concentrations of each.

medium confidence
Researched April 18, 2026

Concerns

  • May modestly enhance skin penetration of co-formulated ingredients
  • Rare allergic reactions possible

Commonly found in

SerumsMoisturizersTonersEye creamsPreservative systems

Research disclaimer: This rating is based on available peer-reviewed research and regulatory assessments at the time of publication. It is not medical advice. Consult a qualified professional for personal health or skin concerns.

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