Polyvinyl Alcohol
INCI: Polyvinyl Alcohol - Also known as: PVA, PVOH
QUICK FACTS
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Key |
Value |
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INCI Name |
Polyvinyl Alcohol |
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Category |
Synthetic Polymer / Film-Former / Rheology Modifier |
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Concentration in Formula |
Low functional level in the Barrier Repairing Hydra-Serum, Elasticity Reinforcing Hydra-Cream, and Elasticity Reinforcing Lipid-Cream |
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Suitable For |
All skin types |
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Origin |
Synthetic (hydrolysis of polyvinyl acetate) |
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Irritation Risk |
Zero - extensively safety-tested |
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Comedogenic Rating |
0 |
What is Polyvinyl Alcohol?
Polyvinyl alcohol (PVA) is a water-soluble synthetic polymer produced by the partial or complete hydrolysis of polyvinyl acetate. It is one of the most widely characterized and safety-tested polymers in cosmetic science, with a long history of use across skincare, pharmaceuticals, and medical device applications. Its film-forming and rheological properties make it a precise formulation tool in products where controlled texture, surface adhesion, and active delivery efficiency matter.
In skincare formulation, PVA functions primarily as a film-former and secondary rheology modifier. Its high-molecular-weight polymer chains create a flexible, breathable film on the skin's surface that can improve the distribution and adhesion of the formula - helping actives maintain contact with the skin for longer after application. Unlike synthetic silicones that create an impermeable occlusive layer, PVA's film is water-permeable and does not interfere with the skin's natural perspiration or TEWL regulation.
At Sweet Chemistry, polyvinyl alcohol contributes to the precise texture architecture of all three water-based formulas alongside xanthan gum and other rheology modifiers - helping to create the smooth, non-draggy application experience that allows high-concentration active formulas to be applied thinly and evenly across the skin's surface.
What does it do for skin?
Polyvinyl alcohol's primary role in Sweet Chemistry's formulas is structural: it contributes to the stability and texture consistency of the emulsion, and to the even distribution of the formula across the skin's surface during application. In a formula carrying 40-46% actives - concentrations significantly above the industry norm - maintaining a smooth, even application rheology is a genuine formulation challenge. PVA's film-forming character helps manage this by providing a controlled, consistent viscosity profile that allows the product to spread thinly and evenly without balling, pilling, or requiring excessive rubbing.
At the skin surface, PVA's flexible film contributes to a smooth, refined skin feel after application - reducing the appearance of surface texture irregularities and providing a subtle, breathable finishing layer that allows the formula's actives to remain in proximity to the skin's surface during the absorption period.
PVA also plays a role in formula stability alongside xanthan gum and the other rheology modifiers in the system. In a high-active emulsion where phase separation would mean inconsistent active delivery, the combined polymer network helps maintain homogeneity throughout the product's shelf life - ensuring that the concentration of Matrikynes® peptides, ceramides, and niacinamide in the first pump is the same as in the last.
FOUND IN
In 3 Formulas
Polyvinyl alcohol is present in Sweet Chemistry's three water-based formulas as part of the rheology system that enables high-active emulsion architecture and smooth, even application.
Nourishment - All Skin Types
Barrier Repairing Hydra-Serum Polyvinyl Alcohol - 1.0 oz / 30 ml
PVA contributes to the even, lightweight texture of the Hydra-Serum's 40%-active emulsion - enabling a formula with 3% Matrikynes® peptides, 5% niacinamide, and 3% ceramides to apply cleanly and distribute evenly.
Hydration - Dry to Normal
Elasticity Reinforcing Hydra-Cream Polyvinyl Alcohol - 1.7 oz / 50 ml
In the Hydra-Cream, PVA contributes to the cushioned satin finish that characterizes this formula - part of the precision polymer network that gives the cream its distinctive skin-like feel.
Hydration - Dry to Dehydrated
Elasticity Reinforcing Lipid-Cream Polyvinyl Alcohol - 1.7 oz / 50 ml
In the Lipid-Cream, PVA works alongside carbomer and xanthan gum to maintain the stability and application evenness of a 46%-active formula - the highest active concentration in the water-based range.
WORKS TOGETHER WITH
Natural Polymer Xanthan Gum
INCI: Xanthan Gum.
A fermentation-derived polysaccharide rheology modifier present alongside PVA in all three water-based formulas. Synergy Note: PVA and xanthan gum are complementary rheology modifiers - xanthan provides pseudoplastic, shear-thinning thickening while PVA contributes film-forming stability. Together they create a more controlled, consistent emulsion texture than either achieves alone
Synthetic Polymer Carbomer
INCI: Carbomer.
A synthetic polyacrylic acid thickener present in the Hydra-Cream and Lipid-Cream alongside PVA. Synergy Note: Carbomer and PVA serve different structural roles within the emulsion - carbomer provides pH-responsive thickening while PVA contributes film-forming stability. Their combined presence in the cream formulas creates a more robust emulsion architecture.
ECM Peptide Complex Matrikynes® Bone Peptides
INCI: Hydrolyzed Cow Bone Extract.
At 3% in all four formulas. Synergy Note: PVA's contribution to emulsion homogeneity helps ensure that Matrikynes® peptides are consistently distributed throughout the formula - active delivery consistency and formula stability are directly linked.