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CASTOR ISOSTEARATE BEESWAX SUCCINATE.

Valuable / SKIN CONDITIONING

A high-performance polymeric ester that merges the structural integrity of beeswax with the emolliency of castor oil to create a breathable, botanical film. It acts as a sophisticated barrier regulator, providing a high-gloss finish while preventing environmental moisture loss.

Film Forming Skin Conditioning Emollient Gloss Agent Viscosity Controller

Science

This high-molecular-weight ingredient functions as a natural film-former and pigment wetting agent. By creating a non-tacky, flexible sheathing effect, it improves the adhesion between skin surface cells (corneocytes) and ensures a uniform distribution of active ingredients and pigments, effectively extending a product's 'play time' and durability on the skin.


Research

High confidence
Effective range 0.1–10%
Optimal

5%

Key findings

  1. 01 Demonstrated a protective sheathing effect on damaged fibers, providing long-term fortification against thermal and mechanical stress.
  2. 02 Significantly enhanced formula substantivity and waterproofing capabilities in anhydrous and SPF systems.
  3. 03 Clinically proven to reduce transepidermal water loss (TEWL) and optimize skin barrier regulation through improved cellular adhesion.

Transparency

Not commonly dusted
Min. effective
1%
Red flag below
0.1%

While functional as a hair-fortifying agent at levels as low as 0.1%, clinical skin barrier benefits require concentrations of 2% or higher. Formulations using it for 'barrier repair' claims at sub-1% levels may be under-dosing for maximum efficacy.


The Formula

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Highly stable and pH-independent; specifically engineered for anhydrous (waterless) systems but can be integrated into the oil phase of emulsions.

Synergies

  • Mineral pigments (Iron Oxides)
  • UV Filters
  • Lipid-based actives

Conflicts

  • Water-only systems
  • Highly cationic surfactants

Safety

CIR Status
Safe as used
Max tested
97%
Pregnancy
Safe
Sensitization risk Low

Classified under the broad safety umbrella of Alkyl Esters. Its component parts—Castor Oil, Beeswax, and Isostearic Acid—all maintain excellent safety profiles in cosmetic use.


Your Skin

Yes Normal
Yes Dry
No Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Valuable

An exceptional multi-functional polymer for creating durable, breathable barriers and enhancing the sensory profile of anhydrous formulas.


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