Emulsifier

Sodium Caproyl Lactylate

INCI: SODIUM CAPROYL LACTYLATE

Reviewed by Kate · Last updated 14 Aug 2026

An emulsifier derived from lactic acid that helps blend oil and water in formulations

Best For Skin Types

All, Sensitive

Addresses

Sensitivity, Barrier repair

Usage Frequency

Daily

What Is Sodium Caproyl Lactylate?

Sodium caproyl lactylate is a mild emulsifier made by combining lactic acid (a naturally occurring hydroxy acid) with a fatty acid. It belongs to a class of ingredients known as lactylates, which are commonly used in cosmetic formulations to stabilise mixtures of oil and water-based components.

In skincare products, this ingredient works to prevent separation and maintain a consistent texture, ensuring that formulations remain stable over time. It is considered a gentle emulsifier suitable for a range of product types, from lightweight serums to creams and lotions.

How It Works

Sodium caproyl lactylate functions as an emulsifier by positioning itself at the boundary between oil and water phases in a formulation. Its molecular structure has one end that attracts water and another that attracts oils, allowing these normally incompatible ingredients to mix and remain blended.

This stabilising action prevents formulations from separating into distinct layers, which would compromise both texture and efficacy. The ingredient does not significantly penetrate or alter skin chemistry; its primary role is functional rather than active.

Clinical Evidence & References

Research specifically examining sodium caproyl lactylate as a standalone skincare ingredient is limited. Most evidence relates to its safety profile and cosmetic functionality in formulations rather than direct skin benefits.

The ingredient is generally recognised as safe in cosmetic use and is well-tolerated across different skin types. Given its mild nature and established use in the industry, it is considered low-risk, though individual sensitivities remain possible. Further targeted research would help clarify any additional skin benefits beyond formulation stability.

How to Use

This ingredient is typically included in finished formulations by manufacturers rather than something to add yourself. When using products containing sodium caproyl lactylate, standard skincare application guidelines apply. No special precautions are needed, and it can be used daily as part of your routine without adjustment based on the presence of this ingredient alone.

Safety & Precautions

Sodium caproyl lactylate is generally well-tolerated and considered safe for cosmetic use across most skin types. Rarely, individuals with sensitivity to lactate-derived ingredients may experience mild irritation, though this is uncommon.

Frequently Asked Questions

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