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Cosmetics Ingredients
The material selection platform
Cosmetics Ingredients


CAS Number 68442-94-4 / 39421-75-5
Chem/IUPAC Name: Guar gum, 2-hydroxypropyl ether, depolymd.
EINECS/ELINCS No: 270-497-9 / -
COSING REF No: 76868
Hydroxypropyl Guar is a naturally-derived ingredient that is commonly used in cosmetics and personal care products as a conditioning agent and thickener. In its raw form, it appears as a white to off-white powder. Hydroxypropyl Guar is known for its ability to provide excellent conditioning benefits to hair, leaving it feeling soft and silky, as well as for its ability to thicken formulations without leaving a greasy residue. The chemical formula of Hydroxypropyl Guar is C12H23NO10.

What is HYDROXYPROPYL GUAR used for?

Hydroxypropyl Guar has many uses in personal care and cosmetics. It is quite beneficial for hair and is also added to makeup in order to provide texture.
  • Hair care: It is commonly used in hair care products due to its conditioning and thickening properties. When used in shampoos and conditioners, Hydroxypropyl Guar helps to improve the texture and manageability of hair, leaving it feeling soft and silky. It also helps to reduce tangling and breakage. Additionally, Hydroxypropyl Guar is often used as a film-forming agent, which helps to protect hair from environmental stressors and prevent damage from heat styling tools
  • Cosmetic products: Used as a thickener and stabilizer in a variety of formulations. It has the ability to provide a smooth and consistent texture to creams and lotions. It is also used as a suspending agent in cosmetics such as makeup and sunscreen, helping to keep particles evenly distributed throughout the product


Hydroxypropyl Guar is made by modifying guar gum with hydroxypropyltrimonium chloride (GHTC) through a chemical reaction. The addition of GHTC increases the water solubility and cationic charge of guar gum, resulting in an improved performance in hair care products. The modified Hydroxypropyl Guar is then dried and processed into a fine powder.

What does HYDROXYPROPYL GUAR do in a formulation?

  • Emulsion stabilising
  • Film forming
  • Hair conditioning
  • Surfactant
  • Viscosity controlling

Safety profile

Hydroxypropyl Guar is safe for use in cosmetics and personal care products. It is non-toxic and non-comedogenic, meaning it does not clog pores or cause acne. As a plant-derived ingredient, it is generally considered vegan, and there are no known issues with halal compliance. However, it is always important to check the specific source and processing methods of the ingredient to ensure it meets any specific dietary or religious requirements.


Technical profile

Property Values
Melting Point 250°C
pH 6.5-7.5
Solubility Soluble in water
Viscosity High
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