Decyl Glucoside
Also known as: Decyl Glucoside
What It Is
A plant-derived, non-ionic surfactant made from glucose (from corn starch) and decanol (a fatty alcohol from coconut or palm oil). One of the mildest and most widely used cleansing surfactants in gentle skincare.
What It Does
Cleanses skin and hair by lifting away oil, dirt, and impurities. Forms a stable, mild foam. Much gentler than sulfate-based surfactants — does not strip the skin's natural lipids or significantly disrupt barrier function at standard concentrations.
Best For
Benefits
- Very mild — non-irritating for most skin types including sensitive and eczema-prone
- Biodegradable and plant-derived
- Non-ionic — does not interact negatively with cationic conditioning ingredients
- Appropriate for skin and hair cleansing, baby products, and low-irritation formulas
When to Be Careful
- Lower foam density than sulfate surfactants — some users perceive this as "less clean"
- May not remove heavy makeup or sunscreen as effectively as stronger surfactants without double cleansing
As the clean beauty and sensitive skin categories grow, glucoside surfactants have become the preferred alternative to SLS and SLES. They allow a foaming cleanser format without the stripping effect of traditional detergents.
Mild does not mean ineffective. Decyl glucoside thoroughly removes water-soluble impurities and excess oil — it simply doesn't over-strip the barrier the way sulfates can. For SPF-wearers or makeup users, consider double cleansing.
First step — cleansing. Use on damp skin, lather, rinse well.
Coco glucoside (complementary glucoside for richer foam), Tocopherol (protective antioxidant in cleanser formulas)
Very rare sensitivity to glucosides. Essentially the safest surfactant category for sensitive skin.
Not a known irritant — overuse signs would be from over-cleansing frequency rather than the ingredient itself.