Dibutyl Ethylhexanoyl Glutamide is an oil-structuring agent derived from L-glutamic acid that enables the creation of transparent anhydrous sticks and gels. It functions by forming a microscopic fibrous network that traps cosmetic oils, providing structural integrity without the opacity or heavy feel of traditional waxes.
- INCI Name:
- Dibutyl Ethylhexanoyl Glutamide
- Chemical/Scientific Name:
- N-Dibutyl-2-ethylhexanoyl-L-glutamine
- Common Aliases:
- GP-1, Glutamide Gellant
| Category: | Thickeners |
| Source Origin: | Synthetic (Amino Acid derived) |
| Comedogenic Rating: | 0 |
| Primary Industries: | Cosmetics, Skincare, Personal Care |
| Solubility: | Oil-soluble (Requires heat) |
At a Glance: Properties & Effects
| Texture Enhancement: | |
| Formula Stability: | |
| Irritation Risk: |
Primary Benefits:
- Creates crystal-clear solid oil sticks and transparent balms.
- Reduces the greasy after-feel of heavy cosmetic oils.
- Enhances the thermal stability of anhydrous formulas.
- Prevents “sweating” or oil syneresis in stick products.
Potential Risks:
- Extremely low irritation potential; generally considered non-sensitizing.
Biological Action & Cosmetic Profile
This amino acid-based gelling agent operates as a low-molecular-weight organogelator (LMOG). Unlike waxes that create a dense, opaque crystalline matrix, this molecule assembles into a three-dimensional network of nano-sized fibers through hydrogen bonding. These nanofibers effectively entrap liquid lipids, transforming them into a solid or semi-solid state while maintaining optical clarity. Because the network is so fine, the resulting gel feels significantly lighter and less occlusive on the skin compared to paraffin or beeswax-based structures.Chemically, the structure consists of a glutamic acid backbone modified with alkyl chains. This specific configuration allows it to stabilize a wide variety of polar and non-polar oils. Formulators utilize it to adjust the viscosity of sunscreens, lip glosses, and stick deodorants. Beyond mere thickening, it improves the payoff of pigments and active ingredients by ensuring a uniform distribution throughout the oil phase.Sensory characteristics are a primary driver for its inclusion in luxury formulations. It imparts a smooth, “silky” glide during application and helps mitigate the tackiness of high-viscosity oils. By controlling the release of oils onto the skin, it provides a consistent, controlled application that traditional thickeners often lack.
Broader Applications & Origins
The development of Dibutyl Ethylhexanoyl Glutamide stems from advancements in amino acid chemistry, specifically targeting “green” and biocompatible alternatives to petroleum-derived gellants. While primarily used in high-end skincare, it also finds utility in hair care pomades and clear sun protection sticks. Its high melting point ensures that products remain stable even when exposed to elevated temperatures during transport or storage in warm climates.
Routine Integration
Synergies:
- Caprylic Capric Triglyceride: Excellent for creating crystal-clear, lightweight oil gels.
- Squalane: Enhances the spreadability and skin-mimetic properties of the gel.
- Mineral Oil: Provides superior structural support for high-viscosity mineral oil bases.
- Isopropyl Palmitate: Aids in the dissolution of the gellant during the manufacturing process.
- Octyldodecanol: Improves the clarity and refractive index of the final formula.
Conflicts:
- No known biochemical conflicts with common skincare actives; however, it is incompatible with water-only systems as it is strictly lipophilic.
Clinical Consensus & Safety
The Cosmetic Ingredient Review (CIR) Expert Panel evaluated Dibutyl Ethylhexanoyl Glutamide and concluded it is safe for use in cosmetics at current practices and concentrations. Clinical studies, including Human Repeat Insult Patch Tests (HRIPT), consistently demonstrate that it is a non-irritant and non-sensitizer. Furthermore, its derivation from L-glutamic acid aligns with a high profile of biocompatibility, making it suitable for sensitive skin areas, such as the lips and periorbital region.
Is Dibutyl Ethylhexanoyl Glutamide a plastic or microplastic?
No, this ingredient is an amino acid derivative and does not fall under the definition of microplastics. It is a biodegradable organogelator that provides structure through molecular self-assembly rather than polymer cross-linking.
Why is this ingredient used in “clear” sunscreens?
Traditional waxes like beeswax or carnauba wax are opaque and create a white or cloudy appearance. Dibutyl Ethylhexanoyl Glutamide creates a nano-fiber network that is too small to scatter light, allowing the oil and UV filters to remain perfectly transparent.
Does it cause acne or clog pores?
Current dermatological data and its molecular structure suggest a comedogenic rating of 0. It does not possess the heavy, occlusive properties of waxes or certain esters that are typically associated with pore blockage.