Trimethylsiloxysilylcarbamoyl Pullulan

What is Trimethylsiloxysilylcarbamoyl Pullulan?

Trimethylsiloxysilylcarbamoyl Pullulan is a hybrid ingredient derived from pullulan, a polysaccharide naturally produced by the black yeast Aureobasidium pullulans through fermentation. This base polymer is chemically modified by grafting trimethylsiloxysilylcarbamoyl side chains, imparting silicone-like hydrophobic properties while retaining the biocompatible nature of pullulan. Primarily featured in color cosmetics, sunscreens, and hair care formulations, it works by depositing a thin, elastic film upon application. This film adheres closely to skin or hair shafts, enhancing product durability by resisting moisture, friction, and environmental factors. The modification allows for improved spreadability and a non-greasy feel, making it suitable for long-wear effects without heavy occlusion.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Film former
Creates a continuous film on skin or hair to improve wear, water resistance, transfer resistance, shine, or hold in sunscreens, makeup, and styling products.
Hair fixative
Provides style hold by forming a film on hair, helping maintain shape, reduce frizz, and improve durability in sprays, gels, and mousses.

Benefits

Enhances makeup and sunscreen longevity through a protective film.

Boosts water resistance and reduces transfer in facial products.

Provides flexible hold and frizz reduction in hair styling aids.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
Users of long-wear foundations or lip colors for all-day adherence.
People preferring silicone-free formulations.
Active individuals needing water-resistant sun protection.
Individuals with rare polysaccharide sensitivities.
Those styling hair for humidity-resistant looks.
Users seeking minimalistic, film-free skincare routines.

Safety Notes

  • Considered low hazard with no reported comedogenic concerns.
  • Functions safely across skin types in typical cosmetic concentrations.

Frequently Asked Questions about Trimethylsiloxysilylcarbamoyl Pullulan

What makes it different from plain pullulan?

Silicone modifications add water resistance and flexibility to the natural polysaccharide base.

Is it suitable for daily use?

Yes, it supports everyday cosmetics with a low safety profile.

Does it feel heavy on skin?

No, it creates lightweight, non-occlusive films.