Triethylene Glycol Rosinate

What is Triethylene Glycol Rosinate?

Triethylene glycol rosinate is a synthetic resin produced by esterifying rosin acids—derived from the oleoresin of pine trees—with triethylene glycol. This creates a pale, tack-free material valued in cosmetics for its adhesive and flexible properties. Commonly found in lipsticks, nail polishes, eyeliners, and hair styling products, it acts as a film former by depositing a sheer, protective layer on skin or hair surfaces. This layer boosts product adherence, resists water and transfer, and maintains shine or hold over time. As a plasticizer, it softens rigid films, minimizing cracks and ensuring even spreadability. Its non-comedogenic nature suits various skin types, aiding performance in color cosmetics and protective formulations without heaviness.

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.
Plasticizer
Improves flexibility and reduces brittleness of films (e.g., nail coatings, hair sprays), helping prevent cracking and enhancing smooth application.

Benefits

Forms flexible films for longer-lasting makeup and water-resistant finishes.

Enhances nail polish and hair spray durability by reducing brittleness.

Supports smooth application and shine in lip and styling products.

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 seeking long-wear lip and eye makeup.
Those allergic to rosin or pine tree resins.
People applying nail coatings for flexible, crack-free wear.
People with sensitivity to colophony derivatives.
Individuals wanting transfer-resistant sunscreens or styling aids.
Individuals prone to resin-induced contact dermatitis.

Safety Notes

  • Safe for use in cosmetics when formulated appropriately, with low overall hazard.
  • Minimal irritation risk for most users based on safety assessments.

Frequently Asked Questions about Triethylene Glycol Rosinate

What products typically include it?

Common in lipsticks, nail polishes, eyeliners, and hair sprays for film-forming effects.

Is it suitable for acne-prone skin?

Yes, with a comedogenic rating of 0, it avoids pore blockage.

Does it cause irritation?

Low irritation potential for most, but avoid if allergic to rosin.