Emulsifier

Sucrose Tetraisostearate

INCI: SUCROSE TETRAISOSTEARATE

Reviewed by Rosie · Last updated 2 Jun 2026

A multi-functional sugar-derived emollient that softens skin whilst stabilising formulations

Best For Skin Types

All, Dry, Sensitive, Mature

Addresses

Dryness, Hydration, Barrier repair, Sensitivity

Usage Frequency

Daily

What Is Sucrose Tetraisostearate?

Sucrose tetraisostearate is a naturally derived ingredient made by combining sucrose (a simple sugar) with isostearic acid (a fatty acid). It functions as both an emollient and emulsifier, meaning it can soften the skin whilst helping oil and water-based ingredients blend together seamlessly in a formula.

This ingredient appears in a range of skincare and cosmetic products, where it contributes to texture, stability and skin feel. Its dual role as conditioning agent and stabiliser makes it useful in creams, lotions and serums.

How It Works

Sucrose tetraisostearate works as an emollient by coating the outermost layer of skin with a thin, breathable film of lipids. This film mimics the skin's natural lipid barrier and helps trap water within the stratum corneum, the skin's uppermost layer.

As an emulsifier, it also allows oil and water-based components within a formulation to remain blended together. This ensures the product maintains a consistent texture and delivers its active ingredients evenly to the skin.

Clinical Evidence & References

Research specifically investigating sucrose tetraisostearate in skincare is limited. However, sugar-derived emollients and fatty acid esters are well-established in dermatology as safe and effective skin conditioning agents. They are widely used in clinical skincare ranges, including those formulated for sensitive and compromised skin barriers.

The ingredient's safety profile and tolerability are documented in cosmetic safety databases, and it is approved for use in the EU, US and most other regulated markets. More targeted clinical data would help clarify its specific benefits in comparison to other emollients.

How to Use

Sucrose tetraisostearate is typically formulated into products at levels that optimise texture and stability rather than requiring special application instructions. Simply use products containing this ingredient as directed—it will work continuously as part of the formulation's structure. It pairs well with humectants (such as glycerin) to enhance overall hydration benefits, and is generally compatible with most active ingredients.

Safety & Precautions

Sucrose tetraisostearate is well-tolerated across all skin types and has a low irritancy profile. No significant cautions are documented for typical cosmetic use.

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