Tween 20

Polysorbate 20 (Tween 20) – Nonionic Emulsifier & Solubilizer for Cosmetic and Pharmaceutical Use

Polysorbate 20, also known as Tween 20, is a nonionic surfactant and emulsifier widely used in cosmetic, pharmaceutical, and personal care formulations. It is primarily used as a solubilizing agent to help blend essential oils, fragrances, and oil-based ingredients into water-based systems.

Polysorbate 20 is valued for its mildness, stability, and compatibility with a wide range of ingredients, making it one of the most commonly used emulsifiers in skincare and cosmetic manufacturing.

Chemical & Technical Information

• Chemical Name: Polyoxyethylene (20) Sorbitan Monolaurate

• Common Name: Polysorbate 20

• Other Name: Tween 20

• CAS Number: 9005-64-5

• Appearance: Clear to slightly yellow viscous liquid

• Solubility: Soluble in water and alcohol

• HLB Value: ~16.7

• Type: Nonionic surfactant

Key Functions in Formulation

• Emulsifier

• Solubilizer

• Surfactant

• Wetting agent

• Stabilizer

Polysorbate 20 helps improve ingredient dispersion, prevent separation, and enhance formulation stability.

Applications of Polysorbate 20

Cosmetic & Personal Care Products

Polysorbate 20 is widely used in:

• Facial cleansers

• Toners and micellar waters

• Creams and lotions

• Essential oil blends

• Perfume and fragrance formulations

• Hair care products

• Body sprays

It is particularly effective at solubilizing fragrance oils and essential oils into water-based products.

Pharmaceutical Applications

In pharmaceutical formulations, Polysorbate 20 is used as:

• A solubilizing agent

• A stabilizer in liquid preparations

• An emulsifier in topical products

Its nonionic nature makes it compatible with a variety of active ingredients.

Industrial Uses

• Laboratory reagent formulations

• Biotechnological preparations

• Chemical processing applications

Why Polysorbate 20 Is Essential in Cosmetic Manufacturing

Water and oil do not naturally mix. Polysorbate 20 enables stable emulsions and clear solutions, which is critical for:

• Transparent facial mists

• Fragrance sprays

• Stable cosmetic emulsions

• Uniform active ingredient distribution

Its high HLB value makes it ideal for oil-in-water formulations.

Storage & Handling

• Store in a cool, dry place

• Keep container tightly closed

• Protect from excessive heat and moisture

Polysorbate 20 remains a core raw material in cosmetic and pharmaceutical manufacturing due to its versatility, stability, and ability to improve product performance in both water-based and emulsified systems.