Hydrogenated Polyisobutene

Description :

INCI Name

Hydrogenated Polyisobutene

Hydrogenated Polyisobutene is a synthetic, oil-soluble emollient widely used in cosmetic and personal care formulations to provide smoothness, softness, shine, and a luxurious skin feel. It is a hydrogenated derivative of polyisobutene, a polymer-based ingredient that helps improve the texture, spreadability, and overall sensory properties of cosmetic products.

It is commonly used as an alternative to certain mineral oil-based emollients and is particularly valued in lip care, skincare, makeup, and hair care formulations for its glossy finish and moisturising properties.

Unlike volatile oils, Hydrogenated Polyisobutene remains on the skin or lips for an extended period, forming a soft, protective film that helps reduce moisture loss and leaves the surface feeling smooth and conditioned.

Category

• Emollient

• Skin-conditioning agent

• Occlusive agent

• Gloss-enhancing agent

• Texture and sensory modifier

• Film-forming agent

Key Benefits and Functions

1. Provides Excellent Skin Softness

Hydrogenated Polyisobutene acts as an emollient by creating a smooth, lubricating layer on the skin. It helps soften rough areas, improves the feel of dry skin, and leaves the skin feeling supple and conditioned.

2. Helps Reduce Moisture Loss

Its film-forming properties help reduce transepidermal water loss (TEWL) by creating a protective layer on the skin's surface. This helps maintain skin hydration, particularly when used in creams, balms, and other leave-on products.

It does not directly supply water to the skin, so it is generally most effective when combined with suitable humectants and other moisturising ingredients.

3. Enhances Gloss and Shine

One of its most important cosmetic functions is its ability to provide a smooth, glossy finish. It is especially useful in lip glosses, lip balms, tinted lip products, and other formulations where shine and a polished appearance are desirable.

4. Improves Spreadability

Hydrogenated Polyisobutene helps cosmetic products spread evenly across the skin or lips. It provides lubrication during application and reduces the perception of drag, making formulations feel smoother and more comfortable to use.

5. Improves Product Texture

It contributes to a rich, silky, and cushion-like sensory experience. Depending on its grade and concentration, it can help formulations feel more substantial without relying entirely on waxes or solid butters.

6. Supports Long-Lasting Conditioning

Because it is relatively non-volatile, it remains on the application surface longer than many lightweight volatile ingredients. This makes it useful in products designed to provide lasting softness, gloss, and surface protection.

7. Helps Improve Pigment Dispersion

In makeup formulations, Hydrogenated Polyisobutene can contribute to the wetting and distribution of pigments and other oil-compatible ingredients. This supports smooth application and an even-looking finish when the overall formulation is appropriately designed.

Applications in Cosmetics and Personal Care

Solubility

Hydrogenated Polyisobutene is oil-soluble and hydrophobic.

• Soluble or compatible with many cosmetic oils, esters, and other oil-phase ingredients, depending on the grade.

• Insoluble in water.

• Not suitable for direct dissolution in an aqueous phase.

• Generally incorporated into the oil phase of an emulsion or blended into an anhydrous formulation.

For lotions and creams, it can be incorporated into the oil phase, with compatibility and processing requirements checked against the supplier's specifications.

Recommended Usage Concentration

The appropriate concentration depends on the product type, the grade supplied, and the desired sensory effect.

These are general formulation starting ranges, not universal supplier specifications. Higher concentrations may be suitable for certain specialised products, particularly lip glosses. Always verify the recommended use level for your particular grade and assess the finished formulation.

Formulation and Processing Guidelines

• Oil phase: Add Hydrogenated Polyisobutene to the oil phase or blend it with compatible oil-soluble ingredients.

• Heating: Follow the supplier's recommended processing temperature. Heating may be needed to facilitate blending, depending on the grade and other ingredients.

• Emulsions: In creams and lotions, ensure the emulsifier system can accommodate the additional oil-phase material.

• Anhydrous products: It can be blended into lip balms, glosses, and oil-based products with suitable oils, waxes, and butters.

• Texture adjustment: Evaluate the final viscosity, tackiness, gloss, and spreadability after incorporation. It is an emollient rather than a conventional thickening agent, so it should not be relied upon as the sole ingredient for increasing viscosity.

Compatibility with Other Ingredients

Hydrogenated Polyisobutene can generally be used with:

• Vegetable oils and cosmetic esters

• Butters such as shea butter and cocoa butter

• Waxes used in lip balms and other anhydrous products

• Oil-soluble vitamins and suitable oil-soluble cosmetic actives

• Emulsifiers in properly designed creams and lotions

Compatibility should be assessed for the particular raw materials and formulation. It is not directly compatible with water without an appropriate formulation system.

Stability and Storage

Hydrogenated Polyisobutene is generally valued for its good chemical stability and resistance to oxidation compared with many unsaturated oils. However, the stability of the finished product also depends on the other ingredients, packaging, processing conditions, and storage environment.

• Store in a tightly closed container.

• Keep away from excessive heat and direct sunlight.

• Follow the supplier's recommended storage temperature and shelf life.

• Evaluate the finished formulation for changes in odour, colour, texture, and physical stability.

Safety and Suitability

Hydrogenated Polyisobutene is widely used in cosmetic formulations and is generally considered suitable for topical cosmetic applications when an appropriate cosmetic-grade material is used at a suitable concentration.

The safety of a finished product depends on its complete formulation, intended use, exposure, and raw-material quality. For lip products, use a grade specifically appropriate for the intended cosmetic application and verify the supplier's regulatory documentation.

Disclaimer: 

The above information is for educational purposes only and is not intended as professional advice. As these are cosmetic and formulation-grade chemicals, variations in colour, consistency, strength, and performance may occur between batches due to sourcing, purity level and/or make/brand. These chemicals are supplied strictly as raw materials for use across multiple industries and may not follow any single standard. Since each industry has its own specifications and performance requirements, customers are responsible for testing samples in their formulations and confirming compatibility before purchasing larger quantities. Customers can request up to 3 different samples. Sample sizes will be decided by us (Maduras Herbals Pvt Ltd). These samples are free***, but shipping charges apply. We also recommend purchasing products in standard packaging sizes. All purchases on our website fall under B2B transactions. Laboratory test reports can be arranged on request at an additional cost.

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