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C18-30 ACID GLYCOL ESTER.

Valuable / SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

A sophisticated long-chain fatty acid wax that serves as a high-performance structural base and protective emollient. It is specifically engineered to enhance the glide and stability of anhydrous formulas while locking in moisture via a weightless film.

occlusive viscosity controlling skin conditioning texture modifier

Science

By forming a semi-permeable lipid barrier on the stratum corneum, this ester effectively traps internal moisture and reduces transepidermal water loss (TEWL). Its unique C18-30 crystalline structure provides mechanical integrity to product textures, ensuring a smooth application while stabilizing the oil phase of complex emulsions.


Research

High confidence
Effective range 0.1–5%
Optimal

4%

Key findings

  1. 01 Clinical evaluation at 1-4% concentrations demonstrated significant film-forming capability, resulting in improved skin hydration and enhanced rigidity in stick-based delivery systems.
  2. 02 Technical assessments show that inclusion levels up to 5% optimize product 'pay-off' and surface gloss without compromising the non-greasy skin feel.

Transparency

Not commonly dusted
Min. effective
0.5%
Red flag below
0.1%

While often used at lower levels for simple texture modification, clinical skin barrier benefits require concentrations between 1% and 4%. Formulations using it below 0.1% are likely utilizing it for industrial processing rather than skin-active benefits.


The Formula

Solubility
Oil
Optimal pH 3 – 9
0 7 14

Stability

Exhibits exceptional thermal and oxidative stability; its crystalline nature makes it resilient in both highly acidic and alkaline environments.

Synergies

  • Mineral UV filters
  • Pigment dispersions
  • Plant-based triglycerides

Conflicts

  • Strong oxidizing agents

Safety

CIR Status
Safe as used
Max tested
4%
Pregnancy
Safe
Sensitization risk Low

Confirmed as non-irritating and non-sensitizing by the CIR Expert Panel. It is safe for long-term use in leave-on products.


Your Skin

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

Our Assessment

Valuable

An essential structural ingredient for precision stick formulations that provides reliable barrier protection and superior sensory performance.


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