C13-14 Isoparaffin is a lightweight, mineral-derived solvent and emollient primarily used to enhance the texture and spreadability of cosmetic formulas. It functions as a key component in popular thickening blends, providing a smooth, non-greasy finish that improves the user experience of creams and lotions.
- INCI Name:
- C13-14 Isoparaffin
- Chemical/Scientific Name:
- Alkanes, C13-14-iso-
- Common Aliases:
- C13-14 Isoalkane, Isoparaffinic Hydrocarbon
| Category: | Softeners |
| Source Origin: | Synthetic (Petroleum-derived) |
| Comedogenic Rating: | 0-1 |
| Primary Industries: | Skincare, Haircare, Color Cosmetics |
| Solubility: | Oil-soluble |
At a Glance: Properties & Effects
| Texture Enhancement: | |
| Hydration/Moisture: | |
| Irritation Risk: |
- Primary Benefits: Improves product spreadability, provides a weightless emollient feel, facilitates quick absorption, and acts as an effective solvent for other ingredients.
- Potential Risks: Minimal; generally considered non-irritating and non-sensitizing for most skin types.
Biological Action & Cosmetic Profile
Hydrocarbon chains in this ingredient are branched, distinguishing them from linear alkanes found in standard Mineral Oil. This branched structure results in a lower molecular weight and a thinner viscosity, which allows the liquid to spread rapidly across the skin surface without leaving a heavy or occlusive residue. While it does provide a mild barrier to prevent transepidermal water loss (TEWL), its primary physiological role is to modify the “slip” of a formulation, ensuring that thick creams do not feel “draggy” or difficult to apply.Formulations often rely on this ingredient to stabilize emulsions. It is most famously utilized as part of a three-part thickening complex alongside Polyacrylamide and Laureth-7. In this system, the isoparaffin acts as the oil phase that helps the polymer swell and create a gel-like consistency. Because of its volatile nature and high purity, it serves as an excellent alternative to heavier vegetable oils or Petrolatum in products designed for oily or acne-prone skin.
Broader Applications & Origins
Synthetic refinement processes yield highly purified isoparaffins that are free from the impurities often associated with crude petroleum. These alkanes are prized in the cosmetic industry for their stability; they do not oxidize or go rancid, ensuring a long shelf life for finished products. Beyond facial skincare, this ingredient is frequently found in foundations and sunscreens to improve the distribution of pigments and UV filters, preventing “patchiness” during application.
Routine Integration
- Synergies: Works exceptionally well with Polyacrylamide, Trideceth 6, and various forms of Dimethicone to create sophisticated textures.
Clinical Consensus & Safety
The Cosmetic Ingredient Review (CIR) Expert Panel has repeatedly evaluated the safety of isoparaffins in cosmetic use. Their findings conclude that C13-14 Isoparaffin is safe at the concentrations currently used in the industry, typically ranging from 0.1% to 25%. Clinical testing indicates that it is not a significant skin irritant or sensitizer. Furthermore, because of its large molecular size and lack of functional groups that react with biological tissue, it does not penetrate the skin barrier to reach systemic circulation, making it safe for daily topical application.
Is C13-14 Isoparaffin safe for acne-prone skin?
Yes, this ingredient is considered non-comedogenic. Its lightweight, branched-chain structure allows it to provide emolliency without clogging pores or contributing to the greasiness associated with heavier oils.
Is this the same as mineral oil?
While both are derived from petroleum, they differ in molecular structure. C13-14 Isoparaffin consists of branched-chain alkanes, making it much lighter, more volatile, and less occlusive than traditional Mineral Oil.
Why is it in so many gel-creams?
It is a critical component of the emulsifying system used to create “water-drop” or gel-cream textures. It allows the formula to transform from a thick cream into a watery liquid upon contact with the skin.