A plant-derived, non-ionic emulsifier that facilitates the formation of stable oil-in-water emulsions while actively promoting skin hydration. By creating lamellar liquid crystal structures that mimic the skin’s natural lipid bilayer, this ingredient strengthens the moisture barrier and improves the delivery of active substances.
- INCI Name:
- Cetearyl Glucoside
- Chemical/Scientific Name:
- D-Glucopyranose, C16-18-alkyl glycosides
- Common Aliases:
- Alkyl Polyglucoside (APG), Cetyl/Stearyl Glucoside
| Category: | Emulsifiers |
| Source Origin: | Vegetable-derived (typically coconut, palm, and corn) |
| Comedogenic Rating: | 0 |
| Primary Industries: | Cosmetics, Dermatology, Personal Care |
| Solubility: | Oil-dispersible |
At a Glance: Properties & Effects
| Hydration/Moisture: | |
| Barrier Repair: | |
| Formula Stability: | |
| Texture Enhancement: | |
| Irritation Risk: |
- Primary Benefits:
- Creates lightweight, non-greasy emulsions with a silky skin feel.
- Reduces transepidermal water loss by reinforcing the stratum corneum.
- Provides long-lasting moisturization compared to traditional synthetic surfactants.
- Functions as a “green” alternative to ethoxylated (PEG-based) emulsifiers.
- Potential Risks:
- Virtually none; recognized as exceptionally mild and non-sensitizing.
Biological Action & Cosmetic Profile
Condensing Cetearyl Alcohol with Glucose produces this non-ionic surfactant. Unlike traditional emulsifiers that merely bridge oil and water, this molecule organizes into lamellar liquid crystals (LLCs). These microscopic, layered structures serve as an artificial reservoir for water, aligning themselves in a pattern that closely mimics the skin’s own intercellular lipid matrix.Microscopic alignment within the formula ensures that moisture is released gradually into the epidermis. Clinical research published in PubMed suggests that formulations utilizing these liquid crystal systems can significantly improve the penetration of lipophilic actives. By integrating into the lipid bilayers of the stratum corneum, the emulsifier helps patch gaps in the skin barrier, making it an ideal choice for addressing atopic dermatitis and chronic dryness.
Broader Applications & Origins
Maize and coconut serve as the primary feedstocks for the production of this ingredient, supporting its status as a sustainable, biodegradable raw material. Formulators frequently utilize it in “self-emulsifying” bases, most notably when combined with Cetearyl Alcohol. This specific blend is highly valued in the natural beauty sector for creating “oil-in-water” creams that feel fresh and light upon application rather than heavy or occlusive.
Routine Integration
- Synergies:
- Humectants: Pairing this emulsifier with Glycerin or Glucose maximizes water retention within the lamellar layers.
- Fatty Alcohols: Combining it with Behenyl Alcohol, Stearyl Alcohol, or Cetyl Alcohol further stabilizes the liquid crystal network and increases viscosity.
- Emollients: It works seamlessly with Caprylic Capric Triglyceride to produce smooth, spreadable lotions.
- Conflicts:
- No known ingredient conflicts exist; the substance is chemically stable and compatible with a wide range of actives, including acids and vitamins.
Clinical Consensus & Safety
Dermatological evaluations by the Cosmetic Ingredient Review (CIR) Expert Panel have concluded that alkyl glucosides are safe for use in cosmetics at current practices. Because the molecule eventually breaks down into Glucose and fatty alcohols—both of which occur naturally in the body—it possesses an excellent biocompatibility profile. Clinical studies indicate a lack of sensitization or irritation, confirming its suitability for sensitive and reactive skin types.
Is Cetearyl Glucoside safe for acne-prone skin?
Yes. This ingredient has a comedogenic rating of 0, meaning it is highly unlikely to clog pores. While it is often derived from fatty alcohols, its chemical structure as a glucoside makes it much lighter and more skin-friendly than heavy waxes.
Is this ingredient considered “natural”?
Yes, it is widely accepted in natural and organic certifications like COSMOS and ECOCERT. It is synthesized from renewable plant materials and is fully biodegradable, making it an eco-conscious choice for skincare formulations.
How does it differ from other emulsifiers?
Most emulsifiers simply prevent oil and water from separating, but this one provides functional skin benefits. Its ability to form liquid crystals allows it to actively hydrate the skin and repair the barrier, whereas many synthetic emulsifiers can sometimes disrupt the skin’s natural oils.