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What Is C15-19 Alkane?
C15-19 Alkane is a hydrocarbon-derived solvent used in skincare formulations. It belongs to a class of ingredients designed to dissolve and mix other components, helping to create stable, uniform products with desirable textures.
This ingredient works primarily as a solvent within emulsions—blended formulations that combine water and oil-based ingredients. Its role is largely functional rather than directly beneficial to skin; it enables the product to deliver other active ingredients more effectively.
How It Works
C15-19 Alkane acts as a solvent by dissolving both hydrophilic (water-loving) and lipophilic (oil-loving) ingredients, allowing them to coexist in a single product. This bridging function is essential in emulsions, where it helps stabilise the mixture of otherwise incompatible components.
By facilitating this blending, it enables formulators to create products with optimised textures and sensory profiles—meaning ingredients can feel comfortable on skin whilst still remaining effective.
Clinical Evidence & References
Research on emulsion formulations incorporating C15-19 Alkane suggests it performs effectively as an emollient and solvent component within well-designed cosmetic vehicles. Studies using design-of-experiment methodology have explored its role in creating stable, aesthetically pleasing emulsions with good skin application properties.
However, evidence specific to direct skin benefits of this ingredient alone is limited. Its primary value lies in enabling the formulation of products that work well, rather than in standalone therapeutic effects.
How to Use
This is a background ingredient you'll encounter in many moisturisers, serums and emulsions, but not something you need to select for specifically. When choosing products, focus on the active ingredients and your skin's needs; C15-19 Alkane supports the overall formulation performance.
Safety & Precautions
Frequently Asked Questions
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C15-19 Alkane is a variant of C13-15 Alkane, the form you will most often see on an ingredients list.
A lightweight hydrocarbon solvent that dissolves and carries other skincare actives
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