Polysorbate 20 / پولی سوربیٹ 20

Polysorbate 20 is a polyoxyethylene sorbitan ester derived from sorbitol and lauric acid, produced through an ethoxylation process that attaches twenty ethylene oxide units to the sorbitan backbone. First developed for industrial and pharmaceutical use in the mid-twentieth century, it transitioned into cosmetic formulation due to its outstanding ability to solubilize hydrophobic materials into aqueous systems. It has since become one of the most commonly used solubilizers and mild emulsifiers in global cosmetic manufacturing.

What makes Polysorbate 20 particularly valuable is its high HLB value of 16.7, which places it firmly in the water-loving range of the HLB scale. This property allows it to anchor oil-soluble molecules and suspend them stably within water phases, producing optically clear solutions rather than cloudy dispersions. Unlike heavier emulsifiers that require heat processing and mechanical mixing, Polysorbate 20 can solubilize essential oils and actives at room temperature simply by premixing with the oil phase before adding to water.

Recommended Usage 

Skincare (Creams, Serums, Lotions)

Polysorbate 20 is an ideal solubilizer for facial toners, hydrating mists, micellar waters, and lightweight serums where clear, oil-free appearance is essential. Use at 1 to 3 percent to solubilize up to 0.5 percent essential oil load in water-based formulas.

Haircare (Shampoo, Conditioner, Masks)

It functions well as a mild wetting agent and co-surfactant in shampoos and scalp tonics, improving spreadability and rinsing behavior. Use at 1 to 5 percent in rinse-off hair applications for improved lather texture and fragrance distribution.

Soap Making (Cold Process, Melt and Pour)

Polysorbate 20 has limited relevance in cold process soap due to the high-pH saponification environment, which can cause instability. It performs better in melt and pour bases as a fragrance solubilizer at 1 to 3 percent to reduce fragrance acceleration.

Body Care (Scrubs, Butters, Balms)

In body mists, after-sun sprays, and water-dispersible body oils, Polysorbate 20 creates elegant, non-greasy formulas that spread easily and absorb quickly. Use at 3 to 8 percent for body sprays containing up to 2 percent fragrance oil.

Functional Cosmetics (Deodorants, Sunscreen, Baby Care)

Polysorbate 20 is suitable in roll-on deodorant bases, toning mists, and gentle baby cleansers where mild surfactancy is needed without skin disruption. In baby formulas, keep usage below 3 percent and ensure the full formula is evaluated for mildness.