Hydrogenated C6-14 Olefin Polymers serve as high-purity synthetic hydrocarbons that function primarily as emollients and viscosity-increasing agents. They provide a silky, non-greasy skin feel and create a reliable moisture barrier to prevent transepidermal water loss without the risk of oxidation common in natural oils.
- INCI Name:
- Hydrogenated C6-14 Olefin Polymers
- Chemical/Scientific Name:
- Hydrogenated 1-alkene homopolymers (C6-C14)
- Common Aliases:
- Polyalphaolefins (PAO), Hydrogenated Polydecene, Synthetic Squalane Alternative
| Category: | Softeners |
| Source Origin: | Synthetic |
| Comedogenic Rating: | 0-1 |
| Primary Industries: | Cosmetics, Personal Care, Pharmaceuticals |
| Solubility: | Lipid-soluble (Oil phase) |
At a Glance: Properties & Effects
| Hydration/Moisture | |
| Texture Enhancement | |
| Formula Stability | |
| Irritation Risk |
- Primary Benefits:
- Exceptional emollience that leaves the skin feeling smooth and supple.
- Functions as a stable, non-oxidizing alternative to botanical oils.
- Enhances the spreadability of sunscreens and heavy creams.
- Provides a protective, occlusive layer to support skin barrier integrity.
- Potential Risks:
- Extremely low risk of irritation or sensitization.
- Potential for excessive occlusivity in very high concentrations on extremely oily skin.
Biological Action & Cosmetic Profile
Hydrogenated C6-14 Olefin Polymers operate through surface-level occlusion. Unlike smaller molecular weight compounds that penetrate the stratum corneum, these large hydrocarbon chains sit atop the epidermis. This physical presence forms a semi-permeable film that significantly slows the evaporation of water. By mimicking the lubricating properties of human sebum, these polymers restore the lipid balance in dry or compromised skin.
Chemical stability distinguishes this ingredient from unsaturated plant oils. Because the “hydrogenation” process saturates the carbon bonds, the material becomes resistant to rancidity and UV-induced degradation. Formulators frequently utilize these polymers to achieve a consistent “slip” in products ranging from lipsticks to night creams. The sensory profile is often described as “sophisticated,” providing the richness of Mineral Oil without the heavy, “greasy” residue typically associated with traditional petrolatum-based products.
In sunscreen formulations, these polymers assist in the uniform distribution of UV filters. By ensuring an even film thickness across the skin’s micro-ridges, they contribute to the achievement of stated SPF values. Their inert nature ensures they do not interfere with the chemical stability of active ingredients like Ascorbic Acid or Retinol, making them a versatile carrier in advanced anti-aging serums.
Broader Applications & Origins
Historically, polyalphaolefins (PAOs) were developed for high-performance industrial lubrication due to their extreme thermal stability. Their transition into cosmetics was driven by the industry’s need for high-purity, hypoallergenic alternatives to natural oils that could withstand long shelf lives. Manufacturers synthesize these polymers through the polymerization of alpha-olefins followed by hydrogenation. This controlled production environment eliminates the impurities, such as polycyclic aromatic hydrocarbons, that are sometimes concerns in lower-grade petroleum derivatives.
Routine Integration
- Synergies:
- Works effectively with humectants like Glycerin and Sodium Hyaluronate by sealing in the moisture they attract.
- Pairs well with Dimethicone to create a multi-dimensional sensory profile and enhanced water resistance.
- Complements Ceramide Np and Cholesterol in barrier-repair formulations.
- Conflicts:
- No known biochemical conflicts; universally compatible with most cosmetic actives.
Clinical Consensus & Safety
The Cosmetic Ingredient Review (CIR) Expert Panel has evaluated the safety of hydrogenated polyolefins and concluded they are safe for use in cosmetics and personal care products. Clinical studies using Patch Tests consistently show that these polymers are non-sensitizing and non-irritating, even at concentrations up to 100%. Because of their high molecular weight, they do not penetrate the skin barrier, which significantly reduces the risk of systemic absorption or localized toxicity. Dermatological assessments prioritize them for sensitive skin formulations where botanical allergens must be avoided.
Is this ingredient the same as mineral oil?
No. While both are hydrocarbons, Hydrogenated C6-14 Olefin Polymers are fully synthetic and highly branched, offering a lighter, more “elegant” skin feel compared to the heavier, linear structure of traditional Mineral Oil.
Will it clog my pores?
This ingredient is considered non-comedogenic. Its molecular structure is too large to enter the pore, and its high purity ensures there are no contaminants that typically trigger acne or congestion.
Why is it used in “clean” beauty products?
It is often selected as a stable alternative to Squalane or vegetable oils because it does not oxidize. Oxidation of oils on the skin can lead to the formation of irritating byproducts, which these synthetic polymers avoid.