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C20-40 ALKYL CRYLENE.

Valuable CAS - / EMULSION STABILISING, FILM FORMING, VISCOSITY CONTROLLING

A high-performance multifunctional wax and photostabilizer designed to enhance the endurance of sunscreens. It serves as both a structural film-former and a protector for UV filters, ensuring sun protection remains effective and uniform on the skin.

photostabilizer film forming emulsion stabilising viscosity controlling

Science

It functions primarily as a triplet-state quencher for UV filters like Avobenzone; it intercepts the energy absorbed by these filters and safely releases it as heat before the molecules can degrade. Its long-chain alkyl structure also enables it to create a water-resistant, waxy matrix that stabilizes emulsions and improves the physical durability of the product film.


Research

High confidence
Effective range 1–5%
Optimal

3%

Key findings

  1. 01 Demonstrated ability to significantly maintain UVA protection efficiency by preventing the photodegradation of sensitive chemical filters.

Transparency

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

As a functional stabilizer and film-former, concentrations below 1% may fail to provide the necessary photostabilizing energy transfer or the desired water-resistance properties.


The Formula

Solubility
Oil
Optimal pH 4 – 8
0 7 14

Stability

A solid wax requiring heating to 65-75°C for proper integration into the oil phase. Highly stable across typical cosmetic pH ranges.

Synergies

  • Avobenzone
  • Ethylhexyl Methoxycinnamate
  • Oil-soluble UV filters

Conflicts

  • Purely water-based serums
  • Low-HLB systems prone to wax crystallization

Safety

CIR Status
Not reviewed
Pregnancy
Safe
Sensitization risk Low

Due to its high molecular weight, it remains on the skin surface with negligible risk of systemic absorption.


Your Skin

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

Our Assessment

Valuable

An essential auxiliary ingredient for optimizing the longevity and reliability of UVA protection in modern suncare.


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