IsoStearyl Alcohol (Low-Viscosity Light Emollient Alcohol)-CAS 27458-93-9
Product Name: IsoStearyl Alcohol (Low-Viscosity Light Emollient Alcohol)
INCI Name: IsoStearyl Alcohol
Alias: Branched-chain Isostearyl Alcohol, Isostearic Alcohol, Low-Viscosity Fatty Alcohol, Light Non-Greasy Emollient, High-Solubility Active Solvent, Transparent Formula Skin Feel Modifier
CAS No.: 27458-93-9
Appearance: Colorless, clear and transparent oily liquid, pure texture, no peculiar smell, no impurities, no turbidity and precipitation at room temperature.
Grade: Cosmetic Premium Grade
MOQ (Minimum Order Quantity): 25KG
Solubility: Insoluble in water, freely soluble in ethanol, ether, vegetable oils, synthetic esters and all cosmetic oil-phase systems.
Storage Condition: Sealed and stored in dry, cool and ventilated warehouse, storage temperature 5–30℃, avoid high temperature heating, direct sunlight, damp environment and long-term air exposure. Keep tightly sealed after opening to prevent oxidation and turbidity, ensuring stable light skin feel and dissolving performance.
Shelf Life: 24 Months
IsoStearyl Alcohol, Branched Chain Stearyl Alcohol, Low Viscosity Emollient, Non-Greasy Moisturizer, Super Spreadable Solvent, Cosmetic Dispersant, Light Skin Feel Conditioner, Low-Irritation Fatty Alcohol, Transparent Formula Raw Material
IsoStearyl Alcohol (Low-Viscosity Light Emollient Alcohol)-CAS 27458-93-9
Isostearyl Alcohol is a high-end branched-chain low-viscosity fatty alcohol, an upgraded alternative to traditional straight-chain cetyl alcohol and stearyl alcohol.
Traditional C16/C18 straight-chain fatty alcohols are solid at room temperature, with high viscosity and heavy greasy skin feeling after application, and are not suitable for refreshing and transparent formulas.
In contrast, Isostearyl Alcohol adopts optimized branched-chain molecular structure, presenting transparent liquid state at room temperature, with ultra-low viscosity and super spreadability.
It maintains mild non-degreasing moisturizing performance, while solving the shortcomings of heavy greasiness, poor fluidity, difficult active dissolution and easy formula turbidity of straight-chain alcohols.
It can not only moisturize and soften skin and hair, but also optimize formula rheology, improve product clarity and uniformity, and create light, refreshing and non-sticky high-grade skin feel. It is the core exclusive raw material for modern clean beauty, refreshing skin care and transparent high-end cosmetic systems.
Key Benefits
• Branched-Chain Low Viscosity, Super Light Skin Feel: Unique isomeric branched-chain structure endows ultra-low viscosity and excellent fluidity. Compared with stearyl alcohol and cetyl alcohol, it spreads faster and more evenly on the skin, no oily film accumulation, no sticky and heavy residue, perfectly fits refreshing skin care and light makeup formulas.
• High Solubility & Powerful Dispersion Performance: Excellent dissolving capacity for oil-soluble actives, sunscreen filters, essence powders and color cosmetic pigments. It can effectively solve the problems of incomplete dissolution, particle precipitation and uneven dispersion of functional ingredients, improve formula uniformity and finished product stability.
• Improve Formula Transparency & Brightness: Liquid transparent raw material with high compatibility, will not cause emulsion turbidity, fogging or layering. It significantly improves the clarity and gloss of transparent essences, lotions and oil-phase cosmetics, making the finished product clear and bright with high-grade appearance.
• Mild Non-Degreasing, Long-Lasting Refreshing Moisturizing: Non-volatile and low-irritation, does not damage skin sebum film. It forms a thin breathable moisturizing film to lock moisture and relieve dryness, avoiding the dry and tight problem of small-molecule alcohols and the greasy defect of straight-chain fatty alcohols, realizing real refreshing moisturizing.
• Light Fluffy Hair Care Effect: Lubricates hair cuticles, reduces dry friction and static frizz. Different from heavy hair conditioners, it softens hair texture without flattening hair roots, effectively improving dry and rough hair and creating light, fluffy and supple hair condition.
• Stable Formula & Wide Compatibility: Resistant to oxidation and yellowing, stable in high and low temperature environments. It can be compounded with all conventional cosmetic oil-phase raw materials and emulsifiers, with simple process and strong formula adjustability, suitable for various high-end refreshing and transparent cosmetic systems.
Applications
• Transparent Refreshing Skin Care Series: Core emollient and solubilizer for transparent moisturizing essence, refreshing toner emulsion, lightweight water-lotion cream and oil-control skin care products. It ensures formula clarity while providing refreshing moisturizing and softening effect.
• Light Texture Sunscreen & Isolation: Special low-viscosity emollient for sunscreen lotion, refreshing isolation cream and outdoor protective products. It improves sunscreen dispersion uniformity, reduces white cast and greasy feeling, and creates light and docile coating texture.
• High-Grade Fluffy Hair Care: Widely used in fluffy conditioner, hair care essential oil, anti-frizz hair lotion and light hair care products. It softens hair, reduces static frizz, improves dry hair quality, and maintains light and fluffy hair without heaviness.
• Makeup & Color Cosmetic Oil Phase: Ideal oil-phase carrier for primer, liquid foundation, lip gloss and cosmetic color powder dispersion. It optimizes makeup spreadability, improves powder uniformity, and makes makeup fit naturally and last longer.
• Mild Sensitive Skin Refreshing Formula: Suitable for sensitive skin refreshing moisturizing products, postoperative mild care and zero-grease clean beauty formulas. With low irritation and light skin feel, it meets the mild and high-grade formula requirements of fragile skin.
• High-Difficulty Active Formula System: Used as solubilizer and dispersant for high-content oil-soluble actives, plant essences and functional powders, solving the technical pain points of difficult dissolution and easy precipitation of high-efficiency ingredients.
Certificate Of Analysis (COA)
Test Item | Standard Specification | Test Result |
Product Name | IsoStearyl Alcohol | Compliant |
Appearance | Colorless Transparent Liquid, Odorless, No Turbidity & Precipitation | Compliant |
Purity (%) | ≥95.0 | 98.5 |
Viscosity (mPa·s, 25℃) | 35–55 | 42 |
Acid Value (mgKOH/g) | ≤0.5 | 0.15 |
Saponification Value (mgKOH/g) | ≤1.0 | 0.28 |
Moisture Content (%) | ≤0.2 | 0.08 |
Refractive Index | 1.440–1.455 | 1.446 |
Transmittance (%) | ≥99.0 | 99.6 |
Anti-Yellowing Performance | No Yellowing After Long-Term Storage | Qualified |
Heavy Metal (Pb) | ≤1ppm | 0.1ppm |
Arsenic (As) | ≤0.5ppm | Not Detected |
Mercury (Hg) | ≤0.1ppm | Not Detected |
Cadmium (Cd) | ≤0.1ppm | Not Detected |
Total Bacteria | ≤100CFU/g | Qualified |
Pathogenic Bacteria | Negative | Negative |
Conclusion | Conforms to cosmetic grade quality standard | Qualified |
Frequently Asked Questions (FAQ)
• Q1: What is the MOQ of IsoStearyl Alcohol? A1: The standard MOQ is 25KG, support sample orders for formula testing and trial production, and support customized high-purity specifications for mass production.
• Q2: What is the core difference between Isostearyl Alcohol and Cetyl/Stearyl Alcohol? A2: Cetyl/Stearyl Alcohol are straight-chain solid fatty alcohols with heavy greasy skin feel, mainly used for thickening and stabilizing cream texture. Isostearyl Alcohol is branched-chain liquid low-viscosity fatty alcohol, focusing on light emollient, active solubilization and transparent formula optimization, with non-greasy skin feel and super spreadability, suitable for refreshing and transparent systems that solid alcohols cannot adapt to.
• Q3: What is the recommended dosage in cosmetic formulas? A3: Transparent essence & lotion: 1.0%–4.0%; Light cream & moisturizer: 1.5%–5.0%; Sunscreen & isolation: 2.0%–5.5%; Fluffy hair care products: 1.0%–3.5%; Color cosmetic oil phase: 3.0%–8.0%, adjustable according to formula transparency and skin feel requirements.
• Q4: Is Isostearyl Alcohol suitable for sensitive and oily skin? A4: Yes. It is mild and non-irritating, non-comedogenic, no greasy residue, will not block pores or cause oil accumulation. Its light moisturizing effect is very suitable for oily skin and sensitive skin refreshing formulas, avoiding the heaviness of traditional fatty alcohols.
• Q5: What formula scenarios is this product most suitable for? A5: It is specially designed for refreshing, light and transparent cosmetic systems, including transparent skin care, light sunscreen, fluffy hair care and color cosmetic oil phase dispersion. It can replace part of straight-chain fatty alcohols to upgrade product skin feel and appearance grade.
• Q6: What are the formula usage notes? A6: It is an oil-phase raw material, directly added to the oil phase for mixing at conventional temperature; can be compounded with cetyl/stearyl alcohol to balance thickening stability and light skin feel; avoid high-temperature oxidation for a long time to maintain transparency.
• Q7: Can it provide stable supply and professional technical support? A7: Strictly control core indicators such as purity, viscosity, acid value and transmittance to ensure consistent batch stability. Support long-term bulk order supply and provide one-stop professional services including formula debugging, dosage collocation and after-sales technical guidance.
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