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Glyceryl rosinate is a pale yellow to amber solid with a sweet taste that is used in citrus flavored soft drinks, chewing gum, and ice cream.
Glyceryl rosinate also is known as, GEGR (Glyceryl ester of gum rosin)/ ester gum is a monoester of glycerol and mixed long-chain acids of rosin, also called rosin acid/resin acid.
Glyceryl rosinate is produced via a special process; the process provides product stability plus it does not lose its quality upon aging.
CAS Number: 65997-13-9
Molecular Formula: C3H8O3?
EINECS Number: 266-042-9
Synonyms: Glyceryl 1-abietate, Glycerol 1-abietate, Foral 85, Rosin ester with glycerol, 9AT5VG0LP2, Abietic acid, 2,3-dihydroxypropyl ester, Glycerin rosin ester, 186374-50-5, 2,3-dihydroxypropyl (1R,4aR,4bR,10aR)-1,4a-dimethyl-7-propan-2-yl-2,3,4,4b,5,6,10,10a-octahydrophenanthrene-1-carboxylate, Rosin glyceryl ester, hydrogenated;rosin, hydrogenated, glycerol esters;Resin acids and Rosin acids, hydrogenated, esters with glycerol;Glycerol Ester of Hydrogenated Rosin (Food Grade);GLYCEROL ESTER OF HYDROGENATED ROSIN;ROSIN,HYDROGENATED,GLYCEROLESTER;Kolophonium, disproportioniert, dehydriert, hydriert oder dimerisiert, Ester oder Mischester mit Methanol, Ethylenglycol, Diethylenglycol, Triethylenglycol, Glycerin, Trimethylolpropan oder Pentaerythrit;FHE
Glyceryl rosinate is the glycerol ester of rosin acids derived from natural pine resin, and it is mainly used as a tackifying and film-forming agent in cosmetic, pharmaceutical, and industrial formulations.
Glyceryl rosinate improves adhesion, viscosity, and structural stability in products by enhancing binding between ingredients and by forming a flexible protective layer on the applied surface.
Due to its hydrophobic character, it also contributes to water resistance and long-lasting performance in topical and coating applications.
In cosmetic products, Glyceryl rosinate is commonly used in hair styling products, lipsticks, mascaras, and depilatory waxes to enhance stickiness, hold strength, and product durability on skin or hair.
Glyceryl rosinate helps improve the texture and spreadability of formulations while preventing cracking or flaking after drying.
Its natural origin from pine resin makes it attractive for formulations seeking bio-based or plant-derived functional ingredients.
In pharmaceutical and medical applications, Glyceryl rosinate is used in adhesive plasters, transdermal patches, and wound dressings to improve skin adhesion and mechanical stability of the adhesive layer.
Glyceryl rosinate supports controlled drug delivery by maintaining consistent contact between the patch and the skin surface.
Its compatibility with rubber and polymer systems also makes it useful in pressure-sensitive adhesive technologies.
There are various raw material sources available in the market, and those are ruby red to black thermoplastic resin, obtained from pinewood.
Glyceryl rosinate is a complex mixture of glycerol esters of resin acids obtained from rosin, which is extracted from pine trees and refined through esterification processes to improve stability and reduce skin irritation compared to raw rosin.
Glyceryl rosinate functions mainly as a tackifier and film-forming agent, enhancing cohesion, adhesion, and mechanical strength in formulations where durable surface attachment is required.
Its semi-solid to solid resinous structure allows it to modify rheological properties and improve the consistency of viscous or wax-based products.
In cosmetic formulations, Glyceryl rosinate is widely used in hair styling gels, pomades, waxes, and setting sprays to provide strong hold, humidity resistance, and long-lasting styling performance.
Glyceryl rosinate is also used in color cosmetics such as lipsticks, eyeliners, and mascaras to improve pigment adhesion, reduce smudging, and enhance wear resistance.
In depilatory waxes, it contributes to effective hair removal by improving grip on hair shafts while maintaining manageable application viscosity.
Boiling point: 300 °C (at 101.7 kPa)
Density: 1004 kg/m³ (at 22 °C)
Vapor pressure: 1 hPa (at 20 °C)
Form: Pellets
Cosmetic ingredient functions: Perfuming; Film forming
LogP: 4.7–5.8
Glyceryl rosinate is produced by esterifying rosin acids, mainly abietic-type diterpene acids, with glycerol, which reduces the acidity and sensitization potential of raw rosin while improving oxidative and thermal stability.
This chemical modification results in a less reactive, more skin-compatible resin that retains strong adhesive and film-forming properties.
Its molecular structure provides a balance between rigidity and flexibility, allowing it to form durable yet elastic films on skin, hair, or material surfaces.
In hair care and styling products, Glyceryl rosinate contributes to shape retention by creating a cohesive polymer-like network that holds hair fibers together while still allowing some natural movement.
Glyceryl rosinate improves resistance to humidity-induced style collapse by limiting moisture penetration into the styled hair matrix.
This makes it particularly useful in high-hold formulations such as edge control products, styling waxes, and sculpting pastes.
In color cosmetics, Glyceryl rosinate enhances pigment dispersion and anchoring, helping color particles remain fixed on the skin or lashes for extended periods without smearing or migration.
Glyceryl rosinate supports uniform film formation, which improves visual smoothness and product longevity.
Its compatibility with wax systems also helps stabilize stick products by reducing sweating and structural deformation under elevated temperatures.
In medical adhesive technologies, Glyceryl rosinate acts as a tackifier that improves the initial stickiness and long-term adhesion of pressure-sensitive adhesive layers applied to skin.
It allows patches and tapes to conform better to body contours while maintaining sufficient cohesive strength to avoid residue upon removal.
This balance between adhesion and removability is critical for patient comfort and skin integrity during repeated or long-term use.
In packaging and industrial materials, Glyceryl rosinate is used to modify elastomer-based adhesives to enhance bonding to non-polar substrates such as plastics and rubber.
It also improves compatibility between polymer phases, reducing brittleness and improving flexibility in coated or laminated materials.
These properties make it useful in labels, tapes, sealants, and protective coatings where both durability and flexibility are required.
From a regulatory and sustainability perspective, Glyceryl rosinate is valued as a bio-based ingredient derived from renewable forest resources, supporting environmentally conscious formulation strategies.
It is accepted for use in cosmetics and medical devices within specified purity and safety limits, provided allergenic impurities are controlled during manufacturing.
Therefore, it plays an important role in modern formulations that aim to balance performance, safety, and sustainability considerations.
Medium hardness light amber glassy solid resin.
No peculiar smell, bitter taste. Soluble in acetone and benzene, insoluble in water and ethanol.
Glyceryl rosinate, hydrogenated, esters with glycerol is made by hydrogenating rosin under high temperature and high pressure, so that the conjugated double bonds in the rosin are partially or fully hydrogenated into hydrogenated (wood) rosin and esterified with edible grade glycerol, and then refined by steam stripping.
Glyceryl rosinate, also called Glycerol Ester of Gum Rosin (GEGR) or Ester Gum, is anoil-soluble food additive.
Its high density helps keep oils in suspension in water and this property is the reason why it is often used as a beverage stabilizer.
Glyceryl rosinate iswidely used as a base in the production of chewing-gum.
Glyceryl rosinate also serves as analternative to brominated vegetable oil in citrus oil flavored soft drinks. In some cases both ingredients are used together.
In medical and pharmaceutical products, Glyceryl rosinate is incorporated into adhesive bandages, surgical tapes, and transdermal patches to increase skin adhesion and ensure secure fixation during extended wear periods.
It helps prevent edge lifting and adhesive failure caused by sweat, movement, or moisture exposure.
This makes it an important functional component in pressure-sensitive adhesive systems used for wound care and drug delivery.
Beyond healthcare and cosmetics, glyceryl rosinate is used in industrial adhesives, printing inks, coatings, and rubber compounding to improve tack, flexibility, and bonding strength between surfaces.
It enhances compatibility between polymers and fillers, thereby improving overall material performance and durability.
Its role in modifying viscoelastic behavior is particularly important in products requiring both strong adhesion and controlled removability.
From a formulation perspective, Glyceryl rosinate is valued for its compatibility with a wide range of oils, waxes, elastomers, and polymers, allowing it to be integrated into diverse product systems.
Glyceryl rosinate contributes to improved shelf stability by reducing crystallization and phase separation in resin-based blends.
Therefore, it is considered a multifunctional additive that supports both performance and formulation stability across cosmetic, pharmaceutical, and industrial applications.
Uses:
Glyceryl rosinate, hydrogenated, esters with glycerol can be used in the manufacture of various adhesives
Glyceryl rosinate is widely used in hair styling products such as waxes, pomades, gels, and edge control formulations to provide strong hold and long-lasting shape retention.
It enhances adhesion between hair fibers, allowing hairstyles to remain intact even under high humidity or mechanical stress.
Glyceryl rosinate also improves texture and spreadability, making products easier to apply and more uniform on the hair surface.
In color cosmetics, Glyceryl rosinate is used in lipsticks, lip liners, mascaras, and eyeliners to improve pigment adhesion and increase resistance to smudging and transfer.
It supports stable film formation on skin and lashes, contributing to extended wear performance.
Glyceryl rosinates compatibility with wax and oil systems helps maintain structural stability of stick and cream-based products.
In depilatory and waxing products, glyceryl rosinate is incorporated to increase tackiness, enabling efficient gripping of hair during removal while maintaining manageable melting and application behavior.
It improves the mechanical strength of wax films, reducing breakage during stripping.
This results in more effective and consistent hair removal performance.
In medical and pharmaceutical applications, glyceryl rosinate is used in adhesive bandages, surgical tapes, and transdermal drug delivery patches to enhance skin adhesion and product durability.
It ensures reliable contact between the medical device and skin, which is essential for both wound protection and controlled drug absorption.
Glyceryl rosinate also helps reduce adhesive failure caused by moisture, sweat, or body movement.
In industrial adhesive systems, glyceryl rosinate is applied as a tackifier in pressure-sensitive adhesives, hot-melt adhesives, and rubber-based bonding formulations.
It improves bonding strength to various substrates including plastics, metals, and textiles.
Glyceryl rosinate also contributes to flexibility and impact resistance in coated and laminated materials.
In printing inks and coatings, glyceryl rosinate is used to improve adhesion of ink films to packaging surfaces and to enhance gloss and durability of protective coatings.
It supports uniform film distribution and reduces cracking during drying or mechanical deformation.
Therefore, it is an important multifunctional additive in both consumer and industrial product technologies.
Glyceryl rosinate is used in high-performance hair styling formulations where long-lasting fixation, humidity resistance, and shape memory are required for complex or structured hairstyles.
It supports flexible film formation that allows hair movement without losing structural integrity of the style.
This makes it suitable for professional salon products and long-wear consumer styling systems.
In long-wear makeup formulations, glyceryl rosinate contributes to improved adhesion of cosmetic films to skin, reducing product migration caused by sweat, sebum, or facial movements.
It enhances transfer resistance in lip products and eye makeup, thereby increasing overall wear time.
Its film-forming behavior also improves color intensity retention throughout daily use.
In dermatological adhesive systems, Glyceryl rosinate is used to improve patch adhesion on challenging anatomical areas such as joints or highly mobile skin regions.
It allows sustained contact between active pharmaceutical ingredients and the skin surface for effective transdermal delivery.
This improves therapeutic consistency and dosing reliability in patch-based drug systems.
In wound care products, glyceryl rosinate supports stable fixation of dressings while minimizing accidental detachment during daily activities.
It also helps maintain occlusive conditions that promote proper wound healing environments.
This contributes to reduced infection risk and improved patient comfort.
In technical adhesive applications, glyceryl rosinate is used to optimize viscoelastic properties of rubber-based adhesives, improving balance between tack, peel strength, and shear resistance.
It enhances compatibility between polymer matrices and fillers, resulting in more uniform mechanical performance.
These properties are critical in labels, industrial tapes, insulation materials, and vibration-damping products.
In packaging materials, glyceryl rosinate improves adhesion of multilayer films and coatings used for food, pharmaceutical, and consumer product packaging.
It supports resistance to temperature fluctuations and mechanical stress during transportation and storage.
This ensures integrity of packaging systems over extended shelf life.
In specialty coatings, glyceryl rosinate is applied to enhance surface protection, abrasion resistance, and film durability in flexible substrates.
Glyceryl rosinate improves coating flexibility, preventing cracking when substrates are bent or compressed.
Therefore, it plays a valuable role in protective and functional coating technologies.
Safety Profile:
Glyceryl rosinate may cause skin irritation or allergic contact dermatitis in sensitive individuals, especially in those with known sensitivity to rosin or colophony-related compounds.
Repeated or prolonged skin exposure can increase the risk of sensitization, particularly when used in occlusive products or adhesive medical devices.
Symptoms may include redness, itching, swelling, or localized rash at the site of contact.
Eye contact with glyceryl rosinate or formulations containing high concentrations of the resin may result in mechanical irritation, tearing, and temporary discomfort.
Accidental contact should be rinsed immediately with plenty of water to minimize irritation.
Severe eye damage is not expected under normal cosmetic or medical use conditions.
Inhalation of dust or fumes generated during industrial processing or heating of glyceryl rosinate may irritate the respiratory tract and cause coughing or throat irritation.
Adequate ventilation and respiratory protection are recommended in manufacturing and formulation environments.
Thermal decomposition at high temperatures may release irritating organic vapors.
