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Moumoujus

SORBETH-8 BEESWAX.

Valuable CAS 8051-73-8 / SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

SORBETH-8 BEESWAX is an ethoxylated derivative of beeswax, engineered to function as a self-emulsifying agent, enabling the stable blending of oil and water components in formulations. Beyond its primary role, it contributes emollient properties, forming a lightweight protective film that supports skin hydration and barrier integrity.

Summary

Emulsifier Emollient Solubilizer Stabilizer Thickener

Science

Mechanism of Action

This ingredient primarily acts by reducing the surface tension between immiscible phases, thereby facilitating the creation of stable oil-in-water emulsions. As a polar beeswax derivative, the incorporation of polyethylene glycol groups imparts hydrophilic characteristics, enhancing its capability to retain oils and improve gelling. On the skin, SORBETH-8 BEESWAX functions as an emollient, forming a subtle, protective layer that mitigates transepidermal water loss, promotes skin softening, and reinforces the epidermal barrier.

Research

Clinical Evidence

High confidence
Effective range 4–12%
Optimal

12%

Key findings

  1. 01 Clinical tests at 3% concentration on closely related Sorbeth-6 and Sorbeth-20 Beeswax demonstrated minimal irritation and non-sensitizing potential.
  2. 02 Studies with PEG-20 Sorbitan Beeswax at 2% in rabbits indicated it was not a significant skin irritant.
  3. 03 Recommended usage levels between 4% and 12% have shown efficacy in improving skin hydration, enhancing barrier support, reducing water loss, and promoting a smooth, conditioned skin texture without greasiness.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Both
Optimal pH N/A
0 7 14

Stability

Functions as a self-emulsifying wax, creating stable oil-in-water emulsions. It exhibits compatibility with various oils and maintains stability across a wide pH range, effectively stabilizing creams, lotions, and moisturizers.

Safety

Safety Profile

CIR Status
Safe as used
Max tested
12%
Sensitization risk Low

The CIR Expert Panel concluded that Sorbeth-6, Sorbeth-8, and Sorbeth-20 Beeswax are safe for use in cosmetics. This assessment considered data from beeswax, PEGs, and sorbitan esters. While PEGs can be absorbed through damaged skin and were linked to kidney effects in burn patients, they were not sensitizing to normal skin. Rigorous purification to filter out 1,4-dioxane, a potential toxic byproduct of PEG synthesis, is essential. Beeswax itself demonstrates high biocompatibility, a low comedogenicity index (0-1), and a low frequency of allergic reactions (not exceeding 0.1%). SORBETH-8 BEESWAX is specifically considered non-irritating and non-sensitizing.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

SORBETH-8 BEESWAX is a valuable multifunctional ingredient, providing stable emulsification for formulations while effectively enhancing skin hydration and barrier function with a low risk of irritation across all skin types.

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