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Common Name: ISOSTEARETH-20
Product Code: 0216
EINECS: polymer exempt
Brand: RTD™ Specialties

RTD IS-20 is a high HLB (~14) nonionic surfactant produced through the ethoxylation of Isostearyl Alcohol. A soft whitsh paste, it is used to solubilize fragrances, essential oils, and other hydrophobic compounds in aqueous systems. It may also be used in aerosol products to generate foam in conjunction with the propellant. Used with other surfactants, RTD IS-20 also functions as a co-emulsifier.

Isosteareth-20 is listed in the Pharmacos 3 inventory of ingredients used in cosmetic products as an emulsifier. It also functions as a solubilizer, coupling hydrophobic organic compounds into aqueous systems.

In hair care products it may find use in hair styling mousses and gels, volumizing, conditioning and shine gels, and pomades/waxes.

In skin care products, it may find application in foundations, eye makeup remover, antiperspirant/deodorants, spray deodorants, and deodorant sticks.

Features & Benefits:

  • Co-emulsifying Agent
  • Foaming Agent
  • Solubilizing Agent
Appearance (25°C) Soft whitish paste
Appearance (49°C) Clear colorless to pale yellow liquid
Odor Mild, characteristic
Specific Gravity (40°C) 0.95
Melting Point (°C) 35
Hydroxyl Value (mg KOH/g) 48
Color (Gardner) <1
Acid Value (mg KOH/g) <1
Iodine Value (gI2/100g) <1
pH (10% aqueous) 6
Solubility (%, in Water) Miscible with water
Water [Moisture] (%) <1
Soluble In
  • Water
Toxicology Profile
  • Dermal: May cause slight irritation
  • Ingestion: May cause irritation
  • Ocular / Eye Irritation: May cause slight irritation
  • Drum - 450lbs
  • Pail - 50lbs

Regional Approvals:

  • EU
  • US


  • Antiperspirants
  • Deodorants
  • Eye Area Color Cosmetics
  • Facial Color Cosmetics
  • Facial Skin Care
  • Hair Conditioners
  • Styling Aids

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The information presented herein is believed to be accurate and reliable, but no warranty or guarantee, expressed or implied, is made regarding the information or the performance of any product. Further, nothing contained herein shall be taken as any inducement or recommendation to use, manufacture or sell that may infringe any patents or any other proprietary rights now or hereafter in existence, nor to imply compliance with any regulatory requirements

The Hallstar Company - 120 South Riverside Plaza Suite 1620 - Chicago, IL 60606-3911 USA