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Moumoujus

GLYCOL ROSINATE.

Valuable / FILM FORMING

Glycol Rosinate, frequently referenced interchangeably with Glyceryl Rosinate in dermatological contexts, is a versatile ingredient. It forms a protective, occlusive film on the skin, enhancing moisture retention, and functions as an emollient to improve skin smoothness. Additionally, it stabilizes formulations as an emulsifier and thickener.

Summary

Emollient Emulsifying Film forming Moisturizing agent Stabilizer Thickener Surfactant

Science

Mechanism of Action

This ingredient operates by creating a fine, protective layer on the skin's surface, which effectively reduces transepidermal water loss and locks in moisture, thereby enhancing hydration. Its emollient properties contribute to a softened and smoother skin texture. Furthermore, it aids in emulsifying disparate oil and water phases within a product, ensuring a stable and homogenous formulation, and can contribute to mild surfactant activity.

Research

Clinical Evidence

Medium confidence
Effective range 1–96%
Optimal

N/A

Key findings

  1. 01 Clinical evaluations demonstrated no sensitization in human subjects when applied under semi-occluded patches. This concentration is consistent with its use in cosmetic products such as mascaras (8%) and lipsticks (1-10%).
  2. 02 Animal studies indicated skin irritation at this concentration.
  3. 03 This represents the maximum reported concentration for use in depilatory products.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Glycol Rosinate significantly enhances product stability by preventing crystallization and phase separation in resin-based formulations, thereby extending shelf life. It is often co-formulated with plant oils (e.g., castor seed, olive) and delicate emollients (e.g., shea butter) to optimize emulsion system stability.

Synergies

  • Plant oils (e.g., castor seed, olive)
  • Delicate emollients (e.g., shea butter)

Safety

Safety Profile

CIR Status
Safe as used
Max tested
96%
Sensitization risk Moderate

The Cosmetic Ingredient Review (CIR) Expert Panel has concluded Glyceryl Rosinate is safe for cosmetic use within current practices and concentrations, up to 96%. However, caution is advised for individuals with sensitive skin, as plant-derived variants may contain residual resins that could provoke allergic reactions. While clinical tests showed no sensitization at 10%, animal studies reported irritation at 50%. The ingredient also holds FDA status as a food additive. EWG Skin Deep identifies moderate concerns for allergies, immunotoxicity, and use restrictions.

Your Skin

Skin Compatibility

No Normal
Yes Dry
No Oily
No Sensitive
Irritancy Medium
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

Glycol Rosinate is a valuable multi-functional ingredient for enhancing skin hydration and product stability, though individuals with sensitive skin should exercise caution due to a moderate sensitization risk, especially from plant-derived variants or at higher concentrations.

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