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Views: 0 Author: Site Editor Publish Time: 2025-10-17 Origin: Site
In the rapidly evolving cosmetic raw material market, consumers’ demands for product texture, stability, and skin compatibility are constantly rising. Traditional cosmetic additives often struggle to balance multiple needs—some fail to stabilize water-oil formulations, while others leave a greasy residue or irritate sensitive skin. Enter PEG - 150 Distearate, a polyglycol derivative tailored for cosmetics. It integrates emulsification, thickening, and skin-feel regulation, becoming a core ingredient that meets the high standards of modern cosmetic formulations.
As a medium-molecular-weight poly (ethylene glycol) diester derivative, PEG - 150 Distearate exhibits excellent physicochemical properties that align with cosmetic production and application requirements. Its key traits include:
Specific Solubility: Easily dissolves in hot water (above 60℃) and polar organic solvents commonly used in cosmetics (e.g., ethanol, propylene glycol, glycerin), while being slightly soluble in cold water. This solubility profile allows flexible integration into aqueous, oil-in-water (O/W) and water-in-oil (W/O) cosmetic formulations.
Strong Compatibility: Mixes stably with common cosmetic ingredients without adverse reactions. It coexists well with surfactants (e.g., sodium lauryl sulfate), plant oils (e.g., jojoba oil, shea butter), active components (e.g., vitamin E, hyaluronic acid), and UV filters, avoiding precipitation, phase separation, or viscosity collapse.
Reliable Thermal Stability: Maintains stable performance within a temperature range of -10℃ to 80℃. This covers the entire lifecycle of cosmetics—from high-temperature emulsification during production to low-temperature storage in winter, ensuring consistent quality.
Low Irritation & Safety: Complies with global cosmetic safety standards (such as the EU’s CosIng and the US FDA’s regulations). It undergoes strict skin irritation tests, showing no sensitization or irritation, making it suitable for sensitive, dry, and other skin types.
Controllable Melting Point: Has a melting point of 50 - 60℃, which matches the processing temperature of most cosmetic products (45 - 70℃). It melts quickly during production and solidifies uniformly when cooled, helping form stable cream and lotion textures.
PEG - 150 Distearate’s value in cosmetics stems from its dual hydrophilic-lipophilic structure, which enables multi-dimensional regulation of formulations:
Emulsifying Agent: Its molecular structure contains hydrophilic polyethylene glycol segments and lipophilic stearic acid segments. This allows it to reduce the surface tension between water and oil phases, enabling uniform dispersion of oil-soluble ingredients (e.g., plant oils, UV filters) in water-based formulations, and preventing phase separation in products like lotions and creams.
Thickening & Stabilizing Agent: When dissolved in the aqueous phase, its long molecular chains entangle with water molecules and other ingredients, increasing the viscosity of the formulation. This not only avoids ingredient sedimentation (e.g., powder particles in foundations) but also maintains a consistent texture during the product’s shelf life.
Skin-Feel Regulator: After application, it forms a thin, non-greasy film on the skin surface. Unlike traditional thickeners (e.g., stearic acid) that leave a heavy residue, it provides a fresh and moisturizing feel, improving the overall user experience of products.
Active Ingredient Carrier: Its molecular structure can encapsulate small-molecule active ingredients (e.g., vitamin C derivatives, hyaluronic acid). This enhances the solubility and stability of active ingredients, and promotes their gentle penetration into the stratum corneum, boosting the product’s functional efficacy.
Thanks to its multi-functional properties, PEG - 150 Distearate is widely used in various cosmetic products, becoming a “versatile ingredient” for formulators:
*Creams & Lotions: Acts as an emulsifier and thickener in face creams, body lotions, and essence (serum lotions), ensuring uniform water-oil mixing and a smooth, non-greasy texture.
*Moisturizing Products: Enhances the moisturizing effect of hyaluronic acid or glycerin-based products, while regulating skin feel to avoid stickiness.
*Foundations & BB Creams: Improves the dispersion of pigment particles, making the texture more even and enhancing the product’s adherence to the skin, reducing (makeup removal) caused by oil secretion.
*Lipsticks & Lip Balms: Adjusts the hardness and smoothness of lip products, preventing cracking in dry environments and leaving a moisturizing film on the lips.
*Sunscreens (lotions/creams): Helps UV filters (e.g., avobenzone, titanium dioxide) disperse uniformly in the formulation, avoiding white cast and improving the product’s water resistance and sweat resistance.
*Body Washes & Shower Gels: Enhances the stability of foam and prevents the formula from becoming thin in water, while leaving a moisturizing feel on the skin after rinsing.
*Hair Masks & Conditioners: Reduces friction between hair strands, making hair smoother and easier to comb, without causing oiliness at the hair roots.
Compared with single-function traditional additives (e.g., stearic acid glycerides, sodium polyacrylate), PEG - 150 Distearate has obvious competitive edges in the cosmetic market:
Multi-Function Integration: It replaces 2 - 3 single-function additives (such as independent emulsifiers + thickeners), simplifying the formulation composition. This not only reduces the risk of ingredient conflicts but also shortens the production process and lowers raw material procurement costs for manufacturers.
Superior Skin Compatibility: Unlike some synthetic emulsifiers (e.g., certain alkylphenol ethoxylates) that may irritate sensitive skin, PEG - 150 Distearate has passed strict safety tests. It is suitable for all skin types, including baby and sensitive skin, expanding the product’s target consumer group.
Consistent Formulation Stability: Traditional thickeners often lose efficacy in extreme temperatures (e.g., high temperature in summer, low temperature in winter) or under acidic/alkaline conditions (pH 5 - 8, the common range for cosmetics). PEG - 150 Distearate maintains stable performance within this range, extending the product’s shelf life to 2 - 3 years.
Optimized User Experience: Traditional oil-based emulsifiers tend to leave a greasy or heavy feel on the skin. PEG - 150 Distearate’s balanced hydrophilic-lipophilic structure ensures a fresh, moisturizing, and non-sticky, which aligns with modern consumers’ preference for “lightweight and effective” cosmetics.
As a leading R&D and production enterprise specializing in cosmetic raw materials, SINOBIO CHEMISTRY Co., Ltd. leverages 15 years of industry experience to produce high-purity PEG-150 Distearate. Its products meet the strict standards of the International Nomenclature of Cosmetic Ingredients (INCI) and undergo multiple quality inspections (including purity, irritation, and stability tests) to ensure they are fully compatible with various cosmetic formulations.
For inquiries about PEG - 150 Distearate samples or bulk orders, please feel free to contact us.
