PEG-7 Glyceryl Cocoate is a versatile, non-ionic surfactant and superfatting agent that imparts a silky, conditioned feel to the skin and hair. It is widely utilized in cleansing formulations to mitigate the potential drying effects of harsher detergents while improving the overall texture of the product.
- INCI Name:
- PEG-7 Glyceryl Cocoate
- Chemical/Scientific Name:
- Polyethylene glycol (7) glyceryl monococoate
- Common Aliases:
- Ethoxylated Glyceryl Monococoate, PEG-7 Glyceryl Monococoate
| Category: | Softeners |
| Source Origin: | Synthetic and Plant-derived (Coconut Oil) |
| Comedogenic Rating: | 0-1 |
| Primary Industries: | Skin Care, Hair Care, Personal Cleansing |
| Solubility: | Water and Oil (Amphiphilic) |
At a Glance: Properties & Effects
| Texture Enhancement: | |
| Hydration/Moisture: | |
| Irritation Risk: |
- Primary Benefits:
- Acts as a refatting agent to prevent skin dehydration during cleansing.
- Functions as a mild emulsifier, helping to stabilize oil-and-water mixtures.
- Provides a “softening” after-feel on the skin without leaving a greasy residue.
- Enhances the solubility of essential oils and other oil-soluble actives in Aqua based systems.
- Potential Risks:
- Extremely rare contact dermatitis in sensitive individuals.
- Risk of 1,4-dioxane contamination if not properly purified during manufacturing.
Biological Action & Cosmetic Profile
Functioning primarily as a non-ionic surfactant, this ethoxylated monoester of Glycerin and fatty acids derived from Coconut Oil provides excellent hydrophilic properties. Its structure allows it to reduce the surface tension of aqueous solutions, facilitating the removal of sebum and environmental debris. Unlike anionic surfactants, which can sometimes penetrate the stratum corneum and cause irritation, the large molecular size of PEG-7 Glyceryl Cocoate ensures it remains predominantly on the surface, making it exceptionally mild.
The “superfatting” mechanism is a critical feature of this ingredient. When incorporated into body washes or shampoos, it deposits a thin, breathable film on the skin. This lipid-restoring action counteracts the lipid-stripping nature of primary cleansers. By replenishing a portion of the oils lost during the washing process, it helps maintain the integrity of the skin barrier and prevents the “tight” feeling often associated with facial cleansers.
Formulators frequently leverage its ability to act as a co-emulsifier and solubilizer. It is particularly effective in transparent oil-cleansing formulations, where it allows the oils to rinse away cleanly upon contact with water. Because it is chemically stable over a wide pH range, it integrates seamlessly into various product formats, from acidic foaming cleansers to alkaline soap bars.
Routine Integration
- Synergies:
- Works optimally alongside Caprylic Capric Triglyceride in oil-to-milk cleansers for improved rinse-off.
- Enhances the mildness of Coco Glucoside and other alkyl polyglucosides.
- Paired with Panthenol or Allantoin to maximize soothing properties in sensitive skin formulations.
Clinical Consensus & Safety
The Cosmetic Ingredient Review (CIR) Expert Panel has evaluated PEG Glyceryl Cocoates multiple times, most recently reaffirming their safety in the 2012 and 2016 reports. The panel concluded that PEG-7 Glyceryl Cocoate is safe for use in cosmetic products when formulated to be non-irritating. Extensive dermatological testing indicates a low potential for sensitization or phototoxicity. While concerns regarding ethoxylation by-products like 1,4-dioxane exist, modern manufacturing standards and vacuum stripping processes effectively reduce these trace impurities to safe, negligible levels as per SCCS guidelines.
Is PEG-7 Glyceryl Cocoate safe for acne-prone skin?
Yes. This ingredient has a very low comedogenic rating and is primarily used in rinse-off products. It does not typically clog pores and is often found in cleansers designed specifically for oily or acne-prone skin to provide gentle cleansing without triggering excess sebum production through over-drying.
Is this ingredient considered “natural”?
It is a semi-synthetic ingredient. While the fatty acid component is derived from natural Coconut Oil, the manufacturing process involves ethoxylation, a synthetic chemical reaction. It is generally accepted in many “green” formulations but may not meet the strictest organic certification standards.
Why is it in my oil cleanser?
In oil cleansers, it acts as the “bridge” between the oil and the water. It allows the heavy oils in the product to emulsify into a milky liquid when you splash water on your face, ensuring that the oil—and the dirt it has dissolved—can be washed away without leaving a film.