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Moumoujus

GLYCOL DISTEARATE.

Valuable CAS 627-83-8 / OPACIFYING, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT, SURFACTANT - EMULSIFYING, VISCOSITY CONTROLLING

Glycol Distearate is a versatile ester widely utilized in skincare for its multi-functional properties, primarily acting as an emollient, emulsion stabilizer, and a texture enhancer. It contributes to product aesthetics by imparting opacity and a desirable pearlescent finish.

Summary

Opacifying Pearling Viscosity Controlling Emollient Emulsion Stabilizing

Science

Mechanism of Action

On the skin, Glycol Distearate functions as an emollient by forming a protective lipid layer on the surface, which effectively minimizes transepidermal water loss (TEWL). This action helps to trap moisture, leaving the skin feeling smoother, softer, and more hydrated. In cosmetic formulations, it also serves to stabilize emulsions, preventing the separation of oil and water phases, and acts as a viscosity-controlling agent to increase product body and thickness. Furthermore, its ability to form microscopic platelets allows it to scatter light, providing products with an opaque quality and a shimmering, pearlescent appearance.

Research

Clinical Evidence

High confidence
Effective range 0.5–10%
Optimal

2%

Key findings

  1. 01 Concentrations between 0.5% and 2.5% are effectively used in cleansing formulations, such as shampoos and body washes, to introduce opacity, enhance softness, and impart a pearlescent effect without compromising foaming performance.
  2. 02 In lotions and creams, 1-2% concentration improves product body and texture, with 2-6% providing a richer consistency and superior emulsion stability. Higher concentrations, up to 10%, can create a thicker, paste-like texture.
  3. 03 A recommended concentration range of 3-8% is typically employed to achieve a distinct pearling effect in various formulations.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Glycol Distearate requires heating to at least 70-75°C (167-170.6°F) and maintaining this temperature until it is completely melted and finely dispersed for optimal incorporation and consistent pearlescent effects. It exhibits stability at elevated temperatures and can contribute to the pH stability of formulations. Its melting point ranges from 60-63°C (140-145°F) or 65-73°C (149-163°F). While nearly insoluble in water, it readily disperses in oil, alcohol (ethanol, isopropyl), cosmetic esters, and heated vegetable or mineral oils.

Safety

Safety Profile

CIR Status
Safe as used
Max tested
10%
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has concluded Glycol Distearate to be safe for cosmetic use within current practice and concentration levels, reaffirming this stance in 2001 and 2022. A repeated insult patch test, conducted on 125 subjects with a 50% concentration, demonstrated no evidence of skin irritation or hypersensitivity. Regulatory bodies, including the European Union and the U.S. Food and Drug Administration (FDA), also recognize its safety for cosmetic applications.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

Glycol Distearate is a valuable ingredient, contributing significantly to skin hydration and texture while offering essential formulation benefits like emulsion stability and an appealing pearlescent finish.

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