Emollient

C14-18 Acid Glycol Ester

INCI: C14-18 ACID GLYCOL ESTER

Reviewed by Rosie · Last updated 2 Jun 2026

A lightweight ester that conditions and softens the skin without a heavy feel

Best For Skin Types

All, Oily, Dry, Combination, Sensitive

Addresses

Dryness, Rough texture

Usage Frequency

Daily

What Is C14-18 Acid Glycol Ester?

C14-18 Acid Glycol Ester is a synthetic ester derived from glycol and long-chain fatty acids. It functions as an emollient and skin conditioning agent, helping to soften and smooth the skin's surface.

This ingredient is commonly used in skincare formulations to improve texture and provide a comfortable feel during application. It's designed to work alongside other moisturising ingredients rather than as a primary hydrating agent.

How It Works

C14-18 Acid Glycol Ester works by depositing a thin conditioning layer on the skin's surface. This layer helps to reduce water loss and creates a smoother appearance by filling in fine irregularities in the skin's texture.

Unlike occlusive ingredients, this ester is designed to feel light and non-greasy, making it suitable for inclusion in formulations intended for various skin types.

Clinical Evidence & References

Published clinical data specifically on C14-18 Acid Glycol Ester is limited. The ingredient is widely used in cosmetic formulations based on its established emollient and conditioning properties, but robust independent studies evaluating its efficacy are sparse.

Safety data suggests it is well-tolerated in skincare products at typical use levels, though as with all cosmetic ingredients, individual tolerance can vary.

How to Use

This ingredient is typically incorporated into moisturisers, serums, and body care products by manufacturers. As a consumer, you will encounter it as part of a complete formulation rather than using it in isolation. Look for it in products that claim lightweight moisturisation or smooth texture—it works best as one component of a well-formulated product rather than as a standalone treatment.

Safety & Precautions

C14-18 Acid Glycol Ester is generally well-tolerated and considered safe for cosmetic use. Patch testing is advisable if you have very sensitive skin, though reported adverse reactions are uncommon.

Frequently Asked Questions

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