Emollient

Isosteareth-200 Linoleate

INCI: ISOSTEARETH-200 LINOLEATE

Reviewed by Kate · Last updated 14 Aug 2026

A plant-derived emollient that conditions and softens the skin

Best For Skin Types

All, Dry, Sensitive, Mature

Addresses

Dryness, Barrier repair, Hydration

Usage Frequency

Daily

What Is Isosteareth-200 Linoleate?

Isosteareth-200 Linoleate is a synthetic compound derived from linoleic acid, a naturally occurring essential fatty acid found in plant oils. It functions as an emollient and skin-conditioning agent, designed to soften and smooth the skin's surface.

This ingredient belongs to a class of modified fatty acids used in skincare formulations to improve texture and maintain moisture levels in the outer layers of skin.

How It Works

Isosteareth-200 Linoleate works by forming a light conditioning film on the skin's surface. The linoleic acid component is recognised for its role in supporting the skin barrier, as plant oils with a higher linoleic acid content have demonstrated better barrier-repair potential compared to those high in oleic acid.

By conditioning the outer layers of skin, this ingredient helps reduce moisture loss and maintain a smoother, more comfortable complexion.

Clinical Evidence & References

Research supports the use of linoleic acid and linoleic-acid-rich oils for skin-barrier function and skin conditioning. Studies indicate that essential fatty acids with favourable linoleic to oleic acid ratios offer benefits for barrier repair, particularly in xerotic and inflammatory skin conditions.

However, direct clinical studies specifically on this modified form are limited. The safety profile of linoleic acid and related botanical compounds is generally considered low-risk, though oxidation of unsaturated lipids on the skin surface is a natural process that warrants consideration in formulation stability.

How to Use

This ingredient is typically used as part of a complete skincare formulation rather than as a standalone treatment. Apply products containing this ingredient to clean skin as directed on the product label. It works well in moisturisers, serums, and conditioning treatments for daily use.

Safety & Precautions

Generally well-tolerated in skincare formulations. As with any plant-derived ingredient, those with known sensitivities to linoleic acid or related botanical compounds should patch-test first.

Frequently Asked Questions

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