What is Hydra Synol® DOI (Isosorbide Dicaprylate) and How is it Used in Cosmetics?
Hydra Synol® DOI is a lightweight cosmetic emollient derived from isosorbide and fatty acids.
It is used in formulations to improve skin feel, spreadability and the overall sensory profile of a product.
Rather than functioning as an active treatment ingredient, it works as a texture-enhancing oil substitute that helps products feel smoother and less greasy during application.
Formulators often select it to create elegant, fast-absorbing formulations and to balance heavier oils or waxes.
Typical uses include serums, lotions, creams and oil-based cosmetics.
Hydra Synol® DOI Technical Details and Characteristics
INCI Name: Isosorbide Dicaprylate
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Appearance: Clear to pale yellow liquid
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Odour: Mild characteristic
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Solubility: Oil soluble
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Recommended usage: 1 – 20%
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pH stability: Stable across cosmetic pH ranges
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Heat stability: Suitable for hot and cold process formulations
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Function: Emollient, spreading agent, sensory modifier
Key Formulation Properties
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Improves glide and slip
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Reduces oily or heavy feel
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Enhances product spreadability
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Helps create lightweight textures
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Compatible with most cosmetic oils and emulsifiers
How to Incorporate Hydra Synol® DOI into Formulations
Hydra Synol® DOI is added to the oil phase of emulsions or directly into anhydrous formulations.
General use:
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Blend with other oils or esters
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Heat if required during oil phase processing
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Combine with water phase if making an emulsion
It can partially replace heavier oils to adjust sensory characteristics without changing the structure of the formula.
Where Hydra Synol® DOI is Found in Cosmetic Products
This ingredient is commonly used in:
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Facial serums
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Moisturising creams
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Lotions
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Oil blends
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Balms
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Makeup bases
It is especially useful in formulas designed to feel lightweight and comfortable during application.