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C14-18 ACID GLYCOL ESTER.

Valuable / SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

A specialized fatty acid ester that bridges the gap between a protective emollient and a structural stabilizer. It is engineered to refine the texture of emulsions while reinforcing the skin’s lipid barrier through a breathable, occlusive layer.

Emollient Skin conditioning Emulsion stabilizing Viscosity controlling

Science

This ingredient functions by depositing a microscopic film over the stratum corneum, effectively sealing in moisture and reducing trans-epidermal water loss (TEWL). Beyond its topical benefits, it acts as a rheological modifier within a formula, increasing the viscosity of the oil phase to ensure a stable, homogeneous dispersion of active ingredients.


Research

High confidence
Effective range 0.1–5%
Optimal

2.5%

Key findings

  1. 01 The Cosmetic Ingredient Review (CIR) identified this ester as an effective skin-conditioning agent that enhances barrier function without inducing dermal irritation across typical usage levels.

Transparency

Not commonly dusted
Min. effective
0.1%
Red flag below
0.05%

Because it serves a dual role as both an emollient and a functional stabilizer, it is rarely 'dusted'; even at low concentrations, it provides measurable improvements to formula texture and skin feel.


The Formula

Solubility
Oil
Optimal pH 4.5 – 8.5
0 7 14

Stability

Highly stable under standard conditions, though it may undergo hydrolysis if exposed to extreme pH environments (highly acidic or alkaline).

Synergies

  • Lipophilic sun filters
  • Ceramides
  • Natural oils

Conflicts

  • Strong oxidizing agents
  • Highly acidic formulations
  • Strong alkaline bases

Safety

CIR Status
Safe as used
Pregnancy
Safe
Sensitization risk Low

Structurally consistent with other safe fatty acid esters; non-sensitizing and non-irritating.


Your Skin

Yes Normal
Yes Dry
No Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Valuable

An excellent textural and barrier-supporting agent that is particularly beneficial for dry and sensitive skin profiles due to its low irritancy and stabilizing properties.


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