Ingredient review
Hydroxypropylcellulose Stearyl Carbamate
INCI: Hydroxypropylcellulose Stearyl Carbamate
A gentle, semi-synthetic thickener and stabilizer that improves product texture without clogging pores or irritating skin.
In plain English
This ingredient is a modified version of plant-derived cellulose (the same stuff that makes plants sturdy) combined with a fatty alcohol from plants. It acts like a thickening and stabilizing agent in lotions, creams, and sunscreens. Think of it as a helper that keeps the product from separating into watery and oily layers, and gives it a smooth, silky feel when you apply it. It's very gentle and unlikely to cause breakouts or irritation.
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
- semi synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Hydroxypropylcellulose Stearyl Carbamate 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 Hydroxypropylcellulose Stearyl Carbamate.
- 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 semi-synthetic polymer created by chemically bonding stearyl alcohol (a fatty alcohol from plants) to hydroxypropylcellulose (a modified cellulose from wood pulp). The result is a powder that swells in water to form a gel-like network.
How it works
When mixed into a water phase of a formula, it hydrates and swells, increasing the viscosity (thickness) of the product. Its stearyl (fatty) chain also helps it interact with oils, allowing it to stabilize emulsions (mixtures of oil and water) so they don't separate. It also leaves a very thin, flexible film on the skin that feels smooth and non-sticky.
Pros
Excellent texture enhancer
Provides a silky, smooth feel without greasiness, making products more pleasant to apply.
Gentle on skin
Has a very low irritation and comedogenic (pore-clogging) risk, suitable for sensitive and acne-prone skin.
Cons and cautions
Not a treatment ingredient
It only improves formula feel and stability, not directly treating wrinkles, acne, or dryness.
Semi-synthetic origin
While derived from natural cellulose, it is chemically modified, which may not suit those seeking fully natural products.
Best for
- Anyone who wants a lightweight, non-greasy moisturizer or sunscreen
- People with sensitive or acne-prone skin looking for a gentle thickener
Use caution if
- Those seeking a purely natural or unprocessed ingredient list
Usage tips
Safety summary
Hydroxypropylcellulose Stearyl Carbamate is considered very safe for cosmetic use. It has a low potential for skin irritation, sensitization, and comedogenicity. No significant safety concerns have been raised by regulatory or scientific bodies.
Research notes
Safety assessments are based on the ingredient's chemical class (modified celluloses and fatty alcohols), which have a long history of safe use in cosmetics. Specific published studies on this exact compound are limited, but its components are well-established as safe.
Common label clues
- Typical concentration
- 0.1% to 2%
- Regulatory status
- Approved for use in cosmetics globally, including by the U.S. FDA and EU CosIng database, with no known safety restrictions at typical use levels.
- Common uses
- Moisturizers, Sunscreens, Serums, Makeup
- Environmental note
- Derived from renewable wood pulp and plant-based fatty alcohols, making it a more sustainable choice compared to fully synthetic thickeners.
Good to know
- Hydroxypropylcellulose Stearyl Carbamate is considered a 'green' thickener because it's derived from renewable plant sources.
- It is often used in combination with other thickeners like carbomer to achieve a specific gel texture.
Common questions
What is Hydroxypropylcellulose Stearyl Carbamate in beauty products?
This ingredient is a modified version of plant-derived cellulose (the same stuff that makes plants sturdy) combined with a fatty alcohol from plants. It acts like a thickening and stabilizing agent in lotions, creams, and sunscreens. Think of it as a helper that keeps the product from separating into watery and oily layers, and gives it a smooth, silky feel when you apply it. It's very gentle and unlikely to cause breakouts or irritation.
What does Hydroxypropylcellulose Stearyl Carbamate do in a beauty product?
When mixed into a water phase of a formula, it hydrates and swells, increasing the viscosity (thickness) of the product. Its stearyl (fatty) chain also helps it interact with oils, allowing it to stabilize emulsions (mixtures of oil and water) so they don't separate. It also leaves a very thin, flexible film on the skin that feels smooth and non-sticky.
Is Hydroxypropylcellulose Stearyl Carbamate safe for most people?
Hydroxypropylcellulose Stearyl Carbamate is considered very safe for cosmetic use. It has a low potential for skin irritation, sensitization, and comedogenicity. No significant safety concerns have been raised by regulatory or scientific bodies.
Who should be careful with Hydroxypropylcellulose Stearyl Carbamate?
Those seeking a purely natural or unprocessed ingredient list
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.