Ingredient review
PG-Hydroxyethylcellulose Lauryldimonium Chloride
INCI: PG-Hydroxyethylcellulose Lauryldimonium Chloride
A gentle conditioning polymer that helps detangle hair and reduce flyaways without heavy buildup.
In plain English
This ingredient is a modified form of cellulose (a plant fiber) that has been given a positive charge. In shampoos and conditioners, that positive charge helps it stick to the negatively charged surfaces of hair and skin, forming a thin, flexible film. This film smooths the hair cuticle, reduces static electricity, and makes hair feel softer and easier to comb. It also helps other conditioning ingredients deposit more evenly. Because it's water-soluble and doesn't build up excessively, it's often used in 'gentle' or daily-use hair products.
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
PG-Hydroxyethylcellulose Lauryldimonium Chloride 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 PG-Hydroxyethylcellulose Lauryldimonium Chloride.
- 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 cationic polymer made by chemically modifying hydroxyethylcellulose (a plant-derived thickener) with lauryldimonium chloride (a quaternary ammonium compound). The result is a positively charged molecule that can bind to hair and skin.
How it works
The positive charge (cationic) attracts it to the negative charge on damaged hair and skin surfaces. Once deposited, it forms a thin, flexible film that smooths the cuticle, reduces friction, and prevents static charge buildup. This film also helps lock in moisture and improves the feel of hair and skin.
Pros
Gentle detangling
Provides noticeable slip and reduces breakage during combing, especially for wet hair, without the heavy feel of silicones.
Low irritation potential
Rated as low-irritation and low-comedogenic, making it suitable for sensitive scalps and skin when used in rinse-off products.
Cons and cautions
Possible buildup on fine hair
If used daily without clarifying, the polymer film can accumulate on very fine or low-porosity hair, leading to limpness or dullness.
Limited moisturizing power
It conditions by film-forming, not by deeply moisturizing. Those with very dry hair may need additional oils or humectants.
Best for
- People with dry, damaged, or chemically treated hair needing extra slip and detangling
- Those with normal to thick hair who want softness without heavy oils
Use caution if
- People with very fine or low-porosity hair who prefer lightweight, non-polymer conditioners
Usage tips
Safety summary
PG-Hydroxyethylcellulose Lauryldimonium Chloride is considered safe for use in rinse-off and leave-on cosmetics at typical concentrations. It has low skin and eye irritation potential and is not known to be sensitizing. Regulatory bodies like the Cosmetic Ingredient Review (CIR) have reviewed similar cationic polymers and found them safe as used.
Research notes
Studies on cationic cellulose polymers show they effectively reduce hair combing force and static charge. Research also indicates they are mild to skin and eyes, with no significant toxicity concerns. Most evidence comes from cosmetic science literature and ingredient safety panels.
Common label clues
- Typical concentration
- 0.1% to 2%
- Regulatory status
- Approved for use in cosmetics in the EU, US, and most major markets. No specific concentration restrictions for rinse-off products.
- Common uses
- Shampoos, Conditioners, Leave-in treatments, Styling products, Body washes
- Environmental note
- Derived from renewable cellulose (plant fiber) and modified with synthetic quaternary groups. It is biodegradable under standard wastewater treatment conditions.
Good to know
- This ingredient is often listed as Polyquaternium-67 on some product labels.
- It is biodegradable and considered more environmentally friendly than some synthetic silicones.
Common questions
What is PG-Hydroxyethylcellulose Lauryldimonium Chloride in beauty products?
This ingredient is a modified form of cellulose (a plant fiber) that has been given a positive charge. In shampoos and conditioners, that positive charge helps it stick to the negatively charged surfaces of hair and skin, forming a thin, flexible film. This film smooths the hair cuticle, reduces static electricity, and makes hair feel softer and easier to comb. It also helps other conditioning ingredients deposit more evenly. Because it's water-soluble and doesn't build up excessively, it's often used in 'gentle' or daily-use hair products.
What does PG-Hydroxyethylcellulose Lauryldimonium Chloride do in a beauty product?
The positive charge (cationic) attracts it to the negative charge on damaged hair and skin surfaces. Once deposited, it forms a thin, flexible film that smooths the cuticle, reduces friction, and prevents static charge buildup. This film also helps lock in moisture and improves the feel of hair and skin.
Is PG-Hydroxyethylcellulose Lauryldimonium Chloride safe for most people?
PG-Hydroxyethylcellulose Lauryldimonium Chloride is considered safe for use in rinse-off and leave-on cosmetics at typical concentrations. It has low skin and eye irritation potential and is not known to be sensitizing. Regulatory bodies like the Cosmetic Ingredient Review (CIR) have reviewed similar cationic polymers and found them safe as used.
Who should be careful with PG-Hydroxyethylcellulose Lauryldimonium Chloride?
People with very fine or low-porosity hair who prefer lightweight, non-polymer conditioners
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.