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Steareth-21 in Cosmetics
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Product Description
Steareth-21 is a polyethylene glycol (PEG)-based surfactant and emulsifier derived from stearyl alcohol through ethoxylation. Chemically, it is a long-chain polyether alcohol with the formula C₁₈H₃₇(OCH₂CH₂)ₙOH, where n ≈ 21, giving it both hydrophilic (PEG chain) and lipophilic properties. As a non-ionic surfactant, it exhibits high stability in various pH ranges and is valued for its emulsifying, thickening, and solubilizing capabilities in cosmetic formulations.
Aogebio® presents Steareth-21, a trusted non-ionic emulsifier that delivers exceptional stability and texture in oil-in-water (O/W) cosmetic formulations. With its high HLB value (~15.5), our Steareth-21 is ideal for creating lightweight, non-greasy lotions, creams, and serums that absorb quickly while maintaining superior emulsion stability.
As a key ingredient in skincare, suncare, and makeup products, Aogebio® Steareth-21 ensures smooth blending of oil and water phases, enhancing product spreadability and shelf life. Its excellent compatibility with a wide range of cosmetic actives makes it a versatile choice for formulators seeking reliable performance.
Developed for sensitive skin-friendly formulations, our Steareth-21 is rigorously tested for purity and safety, meeting global cosmetic standards. Whether you're developing moisturizers, SPF products, or nourishing treatments, Aogebio® Steareth-21 provides the emulsifying power needed for high-quality, consumer-pleasing textures.
Creates stable O/W emulsions.
Delivers lightweight, fast-absorbing textures.
Compatible with most cosmetic ingredients.
Suitable for sensitive skin formulations.
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Use
Appears as a white to off-white wax or solid, soluble in hot water and oils.
Typical concentration: 0.5–5% in emulsions; higher doses (up to 10%) for thickening or solubilization.
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Skincare Products
Emulsifies oil-based UV filters in water phases, ensuring uniform distribution.
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Cleansing Products
Aids in oil removal without excessive drying, often combined with mild surfactants.
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Haircare Products
Thickens products while smoothing hair cuticles, reducing frizz and static.
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Color Cosmetics
Stabilizes pigment dispersions and improves product adhesion to the skin.
Storage
Store in a closed container at a dry place at room temperature.
Animal Testing
Not animal tested
Vegan
Does not contain animal-derived components
GMO
No data available