Ingredient review
Sodium Cocoyl Glutaminate
INCI: SODIUM COCOYL GLUTAMINATE
A gentle, coconut-derived surfactant that cleanses effectively while being kind to sensitive skin.
In plain English
Sodium Cocoyl Glutaminate is a mild cleansing ingredient made from coconut oil and the amino acid glutamic acid. It helps remove dirt, oil, and makeup from your skin without causing dryness or irritation, making it a popular choice for gentle, everyday cleansers.
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
- natural
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Easy yes for most routines
Sodium Cocoyl Glutaminate 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 Sodium Cocoyl Glutaminate.
- 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
Sodium Cocoyl Glutaminate is a surfactant, meaning it helps water mix with oil and dirt so they can be rinsed away. It is derived from natural sources—coconut fatty acids and the amino acid glutamic acid—making it a biodegradable and skin-friendly alternative to harsher sulfates.
How it works
In a cleanser, Sodium Cocoyl Glutaminate reduces the surface tension of water, allowing it to surround and lift away sebum, makeup, and impurities. Its molecular structure is large and gentle, so it cleans without penetrating deeply or disrupting the skin's natural moisture barrier.
Pros
Extremely gentle on skin
Its large molecular structure means it cleans without penetrating or irritating the skin barrier, making it ideal for sensitive or compromised skin.
Environmentally friendly
Derived from renewable coconut oil and amino acids, it is biodegradable and less harmful to aquatic life compared to traditional sulfates.
Cons and cautions
Milder cleansing power
It may not fully remove heavy, waterproof makeup or long-wear sunscreen in a single wash, requiring a double-cleanse step.
Higher cost
As a specialty amino-acid surfactant, it is more expensive to produce, which can increase the price of finished products.
Best for
- People with sensitive, dry, or eczema-prone skin
- Anyone seeking a sulfate-free, gentle cleanser for daily use
Use caution if
- Those who prefer a very high-foaming, squeaky-clean feel (may find this too mild)
Usage tips
Safety summary
Sodium Cocoyl Glutaminate is considered very safe for topical use. It has low irritation and sensitization potential, and no significant toxicity concerns have been reported in cosmetic concentrations.
Research notes
Studies on amino-acid surfactants like Sodium Cocoyl Glutaminate show they are milder than traditional anionic surfactants (e.g., SLS) and help maintain skin barrier integrity. Most evidence comes from ingredient safety reviews and comparative surfactant studies.
Common label clues
- Typical concentration
- 5–15% in rinse-off products
- Regulatory status
- Approved for use in cosmetics globally, including by the EU CosIng database and the US FDA (as a generally recognized safe ingredient).
- Common uses
- Facial cleansers, Body washes, Shampoos, Makeup removers
- Environmental note
- Derived from coconut oil and glutamic acid, this surfactant is biodegradable and has a lower environmental impact than petroleum-based sulfates.
Good to know
- Sodium Cocoyl Glutaminate is often combined with other mild surfactants to improve foam and cleansing performance.
- It is considered a 'green' surfactant because it is derived from renewable resources and is readily biodegradable.
Common questions
What is Sodium Cocoyl Glutaminate in beauty products?
Sodium Cocoyl Glutaminate is a mild cleansing ingredient made from coconut oil and the amino acid glutamic acid. It helps remove dirt, oil, and makeup from your skin without causing dryness or irritation, making it a popular choice for gentle, everyday cleansers.
What does Sodium Cocoyl Glutaminate do in a beauty product?
In a cleanser, Sodium Cocoyl Glutaminate reduces the surface tension of water, allowing it to surround and lift away sebum, makeup, and impurities. Its molecular structure is large and gentle, so it cleans without penetrating deeply or disrupting the skin's natural moisture barrier.
Is Sodium Cocoyl Glutaminate safe for most people?
Sodium Cocoyl Glutaminate is considered very safe for topical use. It has low irritation and sensitization potential, and no significant toxicity concerns have been reported in cosmetic concentrations.
Who should be careful with Sodium Cocoyl Glutaminate?
Those who prefer a very high-foaming, squeaky-clean feel (may find this 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.