Ingredient review
Dipotassium Undecylenoyl Glutamate
INCI: DIPOTASSIUM UNDECYLENOYL GLUTAMATE
A mild, plant-derived surfactant that cleanses without stripping the skin barrier.
In plain English
This ingredient is a gentle soap-like molecule that helps water mix with oil and dirt so they can be rinsed away. It is made from castor oil and an amino acid (a building block of protein), so it is much kinder to skin than traditional harsh detergents like sodium lauryl sulfate.
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
Dipotassium Undecylenoyl Glutamate 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 Dipotassium Undecylenoyl Glutamate.
- 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
Dipotassium Undecylenoyl Glutamate is a surfactant (cleansing agent) created by combining undecylenic acid from castor oil with glutamic acid, an amino acid. It is a potassium salt, which makes it water-soluble and mild.
How it works
It works by reducing the surface tension between water and oil, allowing impurities and excess sebum to be lifted from the skin and washed away. Its amino-acid backbone means it has a pH close to skin's natural level, so it cleanses without disrupting the protective acid mantle.
Pros
Ultra-gentle on skin
Its amino-acid structure cleanses effectively without stripping natural oils, making it ideal for compromised or sensitive skin.
pH-balanced cleansing
It works at a pH close to skin's natural level (around 5.5), helping preserve the acid barrier and reducing irritation.
Cons and cautions
Lower cleansing power
It may not fully remove heavy, long-wear makeup or waterproof sunscreen on its own, often requiring a double-cleanse method.
Cost factor
Products formulated with amino-acid surfactants tend to be pricier than those using conventional sulfates.
Best for
- People with dry, sensitive, or eczema-prone skin
- Those looking for a sulfate-free, gentle daily cleanser
Use caution if
- Individuals who prefer a very foamy, high-lather cleanser (this produces a creamy, low foam)
Usage tips
Safety summary
Dipotassium Undecylenoyl Glutamate is considered very safe for topical use. It has low irritation and comedogenic potential, and no significant safety concerns have been reported in cosmetic concentrations.
Research notes
Amino-acid surfactants like this one are well-documented in cosmetic science for their mildness and skin compatibility. While direct clinical studies are limited, their safety profile is supported by widespread use and regulatory approvals.
Common label clues
- Typical concentration
- 1–15% in rinse-off products; lower in leave-on formulas
- Regulatory status
- Approved for use in cosmetics globally, including by the EU CosIng database and the US FDA as a safe surfactant.
- Common uses
- Facial cleansers, Body washes, Shampoos, Micellar waters
- Environmental note
- Derived from castor oil (a renewable plant source) and glutamic acid, it is biodegradable and has a lower environmental impact than petroleum-based surfactants.
Good to know
- It is often combined with other mild surfactants to improve foam and cleansing performance.
- The ingredient is biodegradable and considered environmentally friendly.
Common questions
What is Dipotassium Undecylenoyl Glutamate in beauty products?
This ingredient is a gentle soap-like molecule that helps water mix with oil and dirt so they can be rinsed away. It is made from castor oil and an amino acid (a building block of protein), so it is much kinder to skin than traditional harsh detergents like sodium lauryl sulfate.
What does Dipotassium Undecylenoyl Glutamate do in a beauty product?
It works by reducing the surface tension between water and oil, allowing impurities and excess sebum to be lifted from the skin and washed away. Its amino-acid backbone means it has a pH close to skin's natural level, so it cleanses without disrupting the protective acid mantle.
Is Dipotassium Undecylenoyl Glutamate safe for most people?
Dipotassium Undecylenoyl Glutamate is considered very safe for topical use. It has low irritation and comedogenic potential, and no significant safety concerns have been reported in cosmetic concentrations.
Who should be careful with Dipotassium Undecylenoyl Glutamate?
Individuals who prefer a very foamy, high-lather cleanser (this produces a creamy, low foam)
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.