Fragrance

C12-18 Fatty Acids Methyl Esters

INCI: C12-18 FATTY ACIDS METHYL ESTERS

Reviewed by Emma · Last updated 14 Aug 2026

Also known as: C12-18 Fatty Acids Methyl Esters

Plant-derived fragrance component that adds scent to skincare formulations

Best For Skin Types

All

Usage Frequency

Daily

What Is C12-18 Fatty Acids Methyl Esters?

C12-18 Fatty Acids Methyl Esters are fragrance ingredients derived from natural plant oils. They are esters—compounds formed when fatty acids undergo chemical conversion—and belong to a class of materials commonly used to provide or enhance scent in cosmetic products.

In skincare, this ingredient serves primarily as a perfuming agent rather than a skin-treatment compound. It contributes to the overall sensory experience of a product through its aromatic properties.

How It Works

This ingredient functions as a volatile or semi-volatile compound that releases fragrance molecules when the product is applied to skin or exposed to air. The ester structure allows the scent compounds to disperse gradually, creating a sustained aromatic effect.

Unlike active skincare ingredients, C12-18 Fatty Acids Methyl Esters do not target specific skin conditions or provide therapeutic benefits. Their role is cosmetic—to make the product pleasant to use.

Clinical Evidence & References

There is minimal clinical research specifically examining this ingredient's effects on skin health or barrier function. The scientific literature on fragrance ingredients in general suggests that most fragrance components are well-tolerated in cosmetic concentrations, though some individuals may experience sensitivity or contact dermatitis.

If you have fragrance sensitivity or reactive skin, the presence of this ingredient is worth noting when selecting products.

How to Use

Since this is a fragrance component, no special usage guidance applies beyond standard application of the product containing it. If you are sensitive to fragrances, check ingredient lists or opt for fragrance-free alternatives.

Safety & Precautions

Generally recognised as safe in cosmetic use at typical concentrations. Those with fragrance sensitivity, contact dermatitis, or sensitive skin should patch-test products containing this ingredient.

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