Ingredient review
Hydroxypropyl Ethylenediamine Carbomer
INCI: Hydroxypropyl Ethylenediamine Carbomer
A safe, effective thickener that gives gels and creams a smooth, non-sticky feel without clogging pores.
In plain English
Hydroxypropyl ethylenediamine carbomer is a synthetic ingredient that helps thicken and stabilize skincare products. Think of it like a gentle, invisible scaffold that holds a gel or cream together, giving it a smooth, silky texture without feeling heavy or greasy. It's commonly used in clear gels and lightweight moisturizers to improve how they spread and feel on your skin.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
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
- synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Hydroxypropyl Ethylenediamine Carbomer 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 Hydroxypropyl Ethylenediamine Carbomer.
- 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 synthetic polymer derived from carbomer, modified with hydroxypropyl ethylenediamine to improve its thickening and stabilizing properties in water-based formulas.
How it works
When added to water, it swells and forms a network that thickens the liquid, creating a gel-like consistency. It also helps keep oil and water mixed together in emulsions, preventing separation and ensuring a uniform product.
Pros
Lightweight feel
Provides a silky, non-sticky texture that absorbs quickly, making it ideal for gel-based moisturizers and serums.
Low irritation potential
Generally well-tolerated by most skin types, including sensitive skin, with minimal risk of irritation or clogged pores.
Cons and cautions
Synthetic origin
As a lab-created ingredient, it may not appeal to those seeking natural or organic skincare options.
Sensitive to electrolytes
High salt or mineral content in a formula can reduce its thickening ability, requiring careful formulation.
Best for
- Anyone who prefers lightweight, non-greasy textures
- People with oily or combination skin looking for a matte finish
Use caution if
- Those who strictly avoid synthetic ingredients in their skincare
Usage tips
Safety summary
Hydroxypropyl ethylenediamine carbomer is considered safe for use in cosmetics. It has a low irritation and comedogenic risk, making it suitable for most skin types, including sensitive skin.
Research notes
While specific studies on this exact ingredient are limited, carbomer derivatives are well-studied and widely recognized as safe and effective thickeners in cosmetic science.
Common label clues
- Typical concentration
- 0.1% to 1%
- Regulatory status
- Approved for use in cosmetics in the US, EU, and many other regions, with no known restrictions at typical concentrations.
- Common uses
- Gels, Creams, Lotions, Serums
- Environmental note
- As a synthetic polymer, it is not biodegradable, but it is used in low concentrations and is not known to accumulate in the environment.
Good to know
- This ingredient is often used in 'clear gel' moisturizers and acne treatments
- It is considered safe by major cosmetic regulatory bodies when used as directed
Common questions
What is Hydroxypropyl Ethylenediamine Carbomer in beauty products?
Hydroxypropyl ethylenediamine carbomer is a synthetic ingredient that helps thicken and stabilize skincare products. Think of it like a gentle, invisible scaffold that holds a gel or cream together, giving it a smooth, silky texture without feeling heavy or greasy. It's commonly used in clear gels and lightweight moisturizers to improve how they spread and feel on your skin.
What does Hydroxypropyl Ethylenediamine Carbomer do in a beauty product?
When added to water, it swells and forms a network that thickens the liquid, creating a gel-like consistency. It also helps keep oil and water mixed together in emulsions, preventing separation and ensuring a uniform product.
Is Hydroxypropyl Ethylenediamine Carbomer safe for most people?
Hydroxypropyl ethylenediamine carbomer is considered safe for use in cosmetics. It has a low irritation and comedogenic risk, making it suitable for most skin types, including sensitive skin.
Who should be careful with Hydroxypropyl Ethylenediamine Carbomer?
Those who strictly avoid synthetic ingredients in their skincare
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.