Ingredient review
C20-22 Alkyl Glucoside
INCI: C20-22 Alkyl Glucoside
A gentle, non-stripping surfactant that cleanses without disrupting the skin barrier, ideal for sensitive skin.
In plain English
C20-22 Alkyl Glucoside is a mild cleansing ingredient made from fatty alcohols (derived from plant oils like coconut or palm) and glucose (from corn or wheat). It helps water and oil mix together in a formula, so you can rinse away dirt and makeup without harsh sudsing. Because it's large-molecule and gentle, it doesn't penetrate the skin deeply, making it less likely to cause irritation or dryness compared to traditional sulfates.
Review score
Safety, usefulness, and evidence
Strong fit for many routines
The evidence base is useful, but some claims depend heavily on the formula.
Risk flags are low for most users, though the finished product can still irritate.
- Source
- semi synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Easy yes for most routines
C20-22 Alkyl Glucoside is generally a lower-concern ingredient when the full formula suits your skin.
Plain-English read
Treat this as a practical screening step before you compare products that contain this ingredient.
- Step 1Start with the score, then check the irritation and clogging risk before judging C20-22 Alkyl Glucoside.
- Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
- Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.
Score terms in plain English
Irritation risk
lowLess likely to sting, burn, or bother most users, though sensitive skin can still react.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
moderateThere is useful support, but formula details and claim strength still matter.
What it is
A non-ionic surfactant and emulsifier produced by reacting long-chain fatty alcohols (C20-22) with glucose. It belongs to the alkyl glucoside family, known for being biodegradable and mild on skin.
How it works
It reduces the surface tension between oil and water, allowing them to blend into a stable emulsion. In cleansers, it lifts dirt and oil from the skin so they can be rinsed away. Its large molecular size means it stays mostly on the skin's surface, minimizing penetration and irritation.
Pros
Ultra-gentle on skin
Its large molecular structure stays on the surface, so it cleans without penetrating or irritating the skin barrier, making it ideal for sensitive or compromised skin.
Environmentally friendly
Made from renewable plant sources and fully biodegradable, it breaks down quickly in water without harming aquatic life.
Cons and cautions
Lower foam volume
Produces a creamy, low-foam lather that may not satisfy users who associate heavy foam with effective cleansing.
Limited heavy-duty cleansing
On its own, it may struggle to remove stubborn waterproof makeup or long-wear sunscreen, often requiring a double-cleanse step.
Best for
- People with dry, sensitive, or eczema-prone skin
- Anyone looking for a sulfate-free, gentle daily cleanser
Use caution if
- Those who prefer a high-foam, squeaky-clean feel may find it too mild
Usage tips
Safety summary
C20-22 Alkyl Glucoside is considered very safe for cosmetic use. It has low irritation and sensitization potential, and no known toxicity concerns at typical usage levels. It is not a known endocrine disruptor.
Research notes
Alkyl glucosides as a class have been reviewed by the Cosmetic Ingredient Review (CIR) panel and found safe for use in rinse-off and leave-on products. Studies show they are mild to the skin barrier and have low acute toxicity.
Common label clues
- Typical concentration
- 1–10% in rinse-off products; 0.5–3% in leave-on products
- Regulatory status
- Approved for use in cosmetics worldwide, including by the EU CosIng database and the US FDA (as a generally recognized safe ingredient).
- Common uses
- Cleansers, Shampoos, Body washes, Emulsions
- Environmental note
- Biodegradable and typically plant-derived, but sourcing of palm or coconut oil can have environmental impacts. Choose brands that use certified sustainable sources.
Good to know
- Often listed near the middle of an ingredient list because effective concentrations are relatively low.
- Can be derived from palm oil; look for RSPO-certified or sustainably sourced versions if that matters to you.
Common questions
What is C20-22 Alkyl Glucoside in beauty products?
C20-22 Alkyl Glucoside is a mild cleansing ingredient made from fatty alcohols (derived from plant oils like coconut or palm) and glucose (from corn or wheat). It helps water and oil mix together in a formula, so you can rinse away dirt and makeup without harsh sudsing. Because it's large-molecule and gentle, it doesn't penetrate the skin deeply, making it less likely to cause irritation or dryness compared to traditional sulfates.
What does C20-22 Alkyl Glucoside do in a beauty product?
It reduces the surface tension between oil and water, allowing them to blend into a stable emulsion. In cleansers, it lifts dirt and oil from the skin so they can be rinsed away. Its large molecular size means it stays mostly on the skin's surface, minimizing penetration and irritation.
Is C20-22 Alkyl Glucoside safe for most people?
C20-22 Alkyl Glucoside is considered very safe for cosmetic use. It has low irritation and sensitization potential, and no known toxicity concerns at typical usage levels. It is not a known endocrine disruptor.
Who should be careful with C20-22 Alkyl Glucoside?
Those who prefer a high-foam, squeaky-clean feel may find it too mild
Research sources
Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.