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C30-45 ALKYL METHICONE.

Valuable CAS 246864-88-0 / SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT, VISCOSITY CONTROLLING

A high-performance alkyl-modified silicone wax that bridges the gap between traditional waxes and fluid silicones. It provides a structured, silky barrier that enhances formula stability while significantly improving the delivery of potent active ingredients.

Emollient Viscosity Controller Active Carrier Skin Protectant

Science

This ingredient forms a breathable, non-occlusive film on the skin's surface, preventing transepidermal water loss without a heavy or greasy residue. In high-precision skincare, it functions as a micro-encapsulation matrix and rheology modifier, allowing for the controlled, slow release of actives while maintaining a sophisticated sensory profile.


Research

High confidence
Effective range 1–15%
Optimal

5%

Key findings

  1. 01 When used in 50nm microcapsules, it improved retinol slow-release efficiency by 65% and reduced associated irritation by 66%.
  2. 02 Extensive dermal testing confirmed the ingredient is non-irritating to the skin barrier.

Transparency

Not commonly dusted
Min. effective
1%
Red flag below
0.5%

Because it primarily serves as a structural wax or delivery vehicle, it is rarely 'dusted' for marketing purposes; its presence is usually functional for texture or encapsulation.


The Formula

Solubility
Oil
Optimal pH 4.5 – 8.5
0 7 14

Stability

Possesses a high melting point (~70°C); processing must remain below 80°C to prevent thermal degradation.

Synergies

  • Retinol
  • Cyclomethicone
  • Non-polar botanical oils
  • Mineral pigments

Conflicts

  • Water
  • Highly polar solvents
  • Strong oxidizing agents

Safety

CIR Status
Safe as used
Max tested
15%
Pregnancy
Safe
Sensitization risk Low

Safe for topical application; however, safety for incidental inhalation via airbrush technology is not yet established.


Your Skin

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

Our Assessment

Valuable

An exceptional multi-functional wax that stabilizes formulas and optimizes the delivery of irritating actives like retinol.


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