Polysorbate 20 (Tween 20)
- INCI name : Polysorbate 20
- CAS number : 9005-64-5
- Type : Non-ionic emulsifier and solubilizer
- Appearance : Clear to light yellow liquid
- Function : Combines light essential oils with water
- Applications : Facial sprays, perfumes, transparent sprays
- Solubility : Freely soluble in water and alcohol
- Dosage : Usually 1–3%
- Properties : Provides clear solutions, prevents oil separation
- Uses : Safe for cosmetic use, non-toxic
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Using Polysorbate 20 in DIY Recipes
Polysorbate 20 is perfect for dispersing light essential oils in water-based formulas.
How to use it:
- Facial mists & toners:
- Mix essential oils (e.g. lavender, citrus) with 4–6 parts Polysorbate 20 before adding water.
- Prevents oil floating and ensures clarity.
- Bath bombs & salts:
- Add 1–3% to help scent distribute evenly and avoid oil rings in the tub.
- Room sprays:
- For a clean mist, blend fragrance oils with Polysorbate 20 before diluting.
- Micellar waters or gentle cleansers:
- Helps incorporate small amounts of oil for mild cleansing action.
Overview – Polysorbate 20 (Tween 20)
- INCI Name: Polysorbate 20
- CAS Number: 9005-64-5
- Type: Non-ionic emulsifier and solubilizer
- Appearance: Clear to pale yellow liquid
- Odor: Neutral to mildly fatty
- Function: Blends essential oils into water-based formulas
- Uses: Facial mists, perfumes, body sprays, bath care
- Recommended dosage: 1–3% in formulations
- Benefits: Ensures clarity and prevents oil separation
- Safety: Non-toxic, suitable for cosmetic use
- Polysorbate 20 is the INCI name used in cosmetic and regulatory documentation.
- Tween 20 is a trade name, originally coined by Imperial Chemical Industries (ICI).
- 🟢 Both refer to the same substance, with CAS number 9005-64-5 — fully interchangeable in formulations.
Polysorbate 20 – Technical Data Sheet (TDS)
- INCI Name: Polysorbate 20
- CAS Number: 9005-64-5
- Appearance: Clear to pale yellow liquid
- Odor: Neutral to slightly fatty
- pH (aqueous): Approx. 5.5–7.0
- Solubility: Soluble in water and alcohol
- Flash Point: > 100 °C
- Viscosity: Lower than Polysorbate 80, fluid texture
- Usage: 1–3% depending on application
- Storage: Cool, dry, tightly sealed, out of sunlight
- Shelf Life: 24 months if stored properly
- Applications: Solubilizer for essential oils in sprays, toners, and bath formulas
Polysorbate 20 vs Polysorbate 80
| Property | Polysorbate 20 (Tween 20) | Polysorbate 80 (Tween 80) |
|---|---|---|
| CAS Number | 9005-64-5 | 9005-65-6 |
| Appearance | Clear to pale yellow liquid | Yellow to amber viscous liquid |
| Solubility | Soluble in water and alcohol | Soluble in water and alcohol |
| Function | Solubilizes light essential oils | Emulsifies heavier oils |
| Applications | Facial mists, perfumes, bath care | Lotions, bath bombs, sprays |
| Dosage | 1–3% | 1–5% |
| Viscosity | Low (fluid) | Higher (syrupy) |
| Oil Compatibility | Citrus, lavender, mint | Castor, olive, sandalwood |
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