Emollient

C12-18 Acid Triglyceride

INCI: C12-18 ACID TRIGLYCERIDE

Reviewed by Emma · Last updated 18 Aug 2026

A plant-derived emollient that softens skin and stabilises formulations

Best For Skin Types

All, Dry, Sensitive, Mature

Addresses

Dryness, Barrier repair, Hydration

Usage Frequency

Daily

What Is C12-18 Acid Triglyceride?

C12-18 Acid Triglyceride is a lightweight emollient derived from plant oils, composed of fatty acids with 12 to 18 carbon chains. It functions as a conditioning agent that helps soften and smooth the skin barrier.

Beyond its skin-conditioning properties, this ingredient serves multiple roles in skincare formulations: it can act as an emulsifier to help blend oil and water-based components, adjust the viscosity (thickness) of a product, and occasionally function as a solvent for other actives. Its versatility makes it common across different product types.

How It Works

C12-18 Acid Triglyceride works primarily by coating the skin's surface with a thin, conditioning layer. This layer helps reduce water evaporation from the skin, maintaining hydration without necessarily creating an occlusive seal. The ingredient's molecular structure allows it to integrate into formulations smoothly, distributing evenly across the skin.

When used in emulsified products, it helps stabilise the mixture by reducing surface tension between oil and water phases, ensuring a stable, uniform texture that delivers benefits consistently.

Clinical Evidence & References

Research specific to C12-18 Acid Triglyceride is limited in published clinical literature. However, plant-derived triglycerides and medium-chain fatty acids are well-documented as effective emollients that support skin barrier function and improve skin hydration when used in appropriate concentrations.

The ingredient is established as safe and effective in cosmetic use by regulatory bodies including the European Commission. Its long history of use in formulations across the industry suggests good tolerability, though individual responses may vary.

How to Use

C12-18 Acid Triglyceride is typically used as a background ingredient rather than a standalone treatment, so look for it in serums, moisturisers, and emulsions where it contributes to overall texture and skin conditioning. There is no specific frequency guidance needed; use the product containing it according to the manufacturer's instructions, typically daily or as part of your regular routine.

Safety & Precautions

Generally well-tolerated across skin types. Rare sensitivities have been reported; discontinue use if irritation occurs.

Frequently Asked Questions

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