Stearyl Alcohol (Lock-Water Emollient Alcohol)-CAS 112-92-5
Product Name: Stearyl Alcohol (Lock-Water Emollient Alcohol)
INCI Name: Stearyl Alcohol
Alias: Octadecanol, 1-Octadecanol, Stearyl Fatty Alcohol, Stearic Alcohol, Long-Acting Moisturizing Emollient, High-Stability Emulsion Thickener, Hair Anti-Frizz Conditioner
CAS No.: 112-92-5
Appearance: White flaky or granular waxy solid, pure and uniform texture, odorless, free of impurities, agglomeration and precipitation.
Grade: Cosmetic Premium Grade
MOQ (Minimum Order Quantity): 25KG
Solubility: Insoluble in water, easily soluble in hot ethanol, ether and various cosmetic grease and ester systems.
Storage Condition: Sealed and stored in dry, cool and ventilated warehouse, storage temperature 5–30℃, avoid high temperature baking, direct sunlight, damp environment and heavy pressure stacking. Keep tightly sealed after opening to prevent moisture absorption and agglomeration, ensuring stable thickening, moisturizing and anti-frizz performance.
Shelf Life: 24 Months
Stearyl Alcohol, Stearyl Fatty Alcohol, Long-Lasting Lock-Water Emollient, Cosmetic Thickener, Emulsion Stabilizer, Hair Smoothing Conditioner, Dry Skin Barrier Care, Non-Irritating Fatty Alcohol, Cream Texture Modifier
Stearyl Alcohol (Lock-Water Emollient Alcohol)-CAS 112-92-5
Stearyl Alcohol is an upgraded C18 long-chain mild fatty alcohol for high-end cosmetic formulas. Compared with conventional cetyl alcohol (C16), it has longer carbon chain, stronger lipophilic film-forming property and outstanding long-acting water-locking advantage.
It abandons the volatility and degreasing irritation of small-molecule alcohols, and perfectly integrates long-term moisturizing, high-efficiency thickening and super system stabilization.
It can effectively optimize the rheological properties of cream and lotion, build a stable and delicate cream structure, greatly improve the high and low temperature resistance and shelf stability of products, and avoid common problems such as thin texture, water precipitation and formula discoloration.
Meanwhile, its tough breathable oil film can continuously moisturize dry skin and repair frizzy and dry hair quality. It is an irreplaceable core functional raw material for long-effect moisturizing skin care and high-grade stable hair care formulas, and is widely used in dry skin barrier care and high-end clean beauty systems.
Key Benefits
• C18 Long-Chain Strong Lock-Water, Long-Lasting Moisturizing: Longer molecular chain brings stronger oil film toughness and water-locking capacity. It forms a durable breathable moisturizing film on the skin surface, effectively improve stubborn dry and peeling skin, and solve the problem of insufficient moisturizing endurance of conventional fatty alcohols. It keeps skin hydrated and tender for a long time.
• Mild Non-Degreasing, Zero Skin Irritation: Natural high-purity refined formula, non-volatile and non-irritating. It will not damage skin sebum film, no dry and tight after use. It is friendly to sensitive skin, dry fragile skin and infant skin formulas, meeting the requirements of high-standard mild skin care.
• Super Emulsion Stabilization, High & Low Temperature Resistant: The thickening and structural stabilizing effect is significantly better than C16 cetyl alcohol. It can effectively improve the high and low temperature cycle stability of emulsion products, prevent oil-water stratification, water precipitation and texture thinning, and greatly extend product shelf life.
• Optimize High-Grade Cream Texture: It forms a solid, delicate and creamy cream structure, with uniform and smooth spreading, no grainy feeling, no stiff and sticky defects. It upgrades the velvety high-grade skin feel of creams and lotions, and improves product texture and market competitiveness.
• Long-Acting Hair Smoothing & Anti-Frizz: Deeply smooths hair scales, fills dry hair gaps, forms a long-lasting anti-static and anti-frizz protective film, effectively improves dry, rough and frizzy hair, reduces hair knotting, and keeps hair soft and supple for a long time.
• Stable Compatibility & Easy Formula Processing: Excellent compatibility with all cosmetic emulsifiers, greases, waxes and active substances. It melts uniformly at conventional formula temperature with simple deployment process, stable compounding performance, no adverse reaction, suitable for all kinds of high-stability emulsion formulas.
Applications
• Dry Skin Barrier Repair Series: Preferred core raw material for dry skin long-acting moisturizing cream, barrier repair cream and seasonal anti-dry skin care products. It provides lasting water-locking protection, repairs rough skin texture, and improves dry and peeling stubborn skin problems.
• High-Stability Cream & Lotion: Exclusive thickening and stabilizing modifier for high-end moisturizing cream, nourishing face cream and body cream. It optimizes cream structure, improves high and low temperature stability, and ensures consistent texture during long-term storage.
• High-Grade Hair Care Products: Widely used in high-end hair conditioner, intensive hair mask, hair smoothing cream and anti-frizz hair care products. It achieves long-lasting hair smoothing, anti-static and anti-frizz effects, and improves high-grade hair care finishing experience.
• Emulsion Sunscreen & Outdoor Protection: Applied in high-stability lotion sunscreen, outdoor isolation cream and protective skin care products. It stabilizes sunscreen emulsion system, prevents oil-water separation, and makes sunscreen coating more delicate and docile.
• Mild & Clean Beauty Formulas: Suitable for sensitive skin gentle care, postoperative repair skin care and zero-addition clean beauty systems. With low irritation and high safety, it meets the strict formula standards of high-end mild skin care.
• Long-Lasting Daily Care: Added in hand cream, body lotion, foot care cream and other daily care products to achieve long-acting moisturizing and anti-dry effect, improve chapped and rough skin, and enhance lasting care performance.
Certificate Of Analysis (COA)
Test Item | Standard Specification | Test Result |
Product Name | Stearyl Alcohol | Compliant |
Appearance | White Flaky/Granular Solid, Odorless, No Impurities & Agglomeration | Compliant |
Purity (%) | ≥95.0 | 98.8 |
Melting Point (℃) | 56.0–62.0 | 59.5 |
Acid Value (mgKOH/g) | ≤0.5 | 0.18 |
Saponification Value (mgKOH/g) | ≤1.0 | 0.32 |
Moisture Content (%) | ≤0.3 | 0.10 |
Residue on Ignition (%) | ≤0.1 | 0.03 |
Emulsion Stability | No Stratification, No Water Precipitation, High & Low Temperature Resistant | Qualified |
Moisturizing & Lock-Water Performance | Long-Lasting Emollient, Excellent Dry Skin Relief Effect | 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 Stearyl 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 difference between Stearyl Alcohol and Cetyl Alcohol?
A2: Stearyl Alcohol is C18 long-chain fatty alcohol, while Cetyl Alcohol is C16. Stearyl Alcohol has longer molecular chain, stronger oil film toughness, better long-term water-locking effect and higher emulsion stability. It is more suitable for dry skin long-acting moisturizing and high-stability cream formulas, while cetyl alcohol is more suitable for light texture lotion systems.
• Q3: What is the recommended dosage in cosmetic formulas?
A3: High-stability face & body cream: 2.5%–6.5%; Long-acting moisturizing lotion: 1.2%–3.8%; High-grade conditioner & hair mask: 1.8%–4.5%; Emulsion sunscreen & isolation: 1.2%–3.2%; Sensitive skin dry repair formula: 1.2%–2.8%, adjustable according to product texture and stability requirements.
• Q4: Is Stearyl Alcohol suitable for sensitive and dry acne-prone skin?
A4: Yes. It is mild non-volatile fatty alcohol without degreasing irritation, non-comedogenic, will not block pores or cause sensitivity. Its long-acting moisturizing effect can improve dry sensitive skin, and it is the preferred raw material for dry skin barrier repair and mild stable formulas.
• Q5: What formula systems is this product suitable for?
A5: It is suitable for all oil-water emulsion cosmetic systems, especially for formulas requiring high-temperature stability, long-term moisturizing and high-solid cream texture, including high-grade skin care, hair care, sunscreen and daily care products, with ultra-wide compatibility.
• Q6: What are the formula usage notes?
A6: It is recommended to add in the oil phase and heat to 55–75℃ for full melting and uniform stirring; match with cetyl alcohol for compound use to balance texture and stability; avoid long-term ultra-high temperature heating to prevent performance attenuation.
• Q7: Can it provide stable supply and professional technical support?
A7: Strictly control core indicators such as purity, melting point, acid value and moisture content to ensure consistent batch stability. Support long-term bulk order supply and provide one-stop professional services including formula debugging, compound ratio optimization and after-sales technical guidance.
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