Ingredient review
Polyquaternium-87
INCI: Polyquaternium-87
Polyquaternium-87 is a gentle synthetic polymer that smooths hair cuticles and reduces frizz without heavy buildup.
In plain English
Polyquaternium-87 is a positively charged polymer that sticks to the negatively charged surface of hair. This helps smooth down the hair cuticle, making hair feel softer, look shinier, and tangle less. It also reduces static electricity, so your hair is less likely to fly away in dry weather. Because it's a larger molecule, it tends to deposit lightly without weighing hair down, making it a good choice for fine or normal hair types.
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
Polyquaternium-87 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 Polyquaternium-87.
- 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
Polyquaternium-87 is a synthetic cationic (positively charged) polymer belonging to the polyquaternium family. It is designed to condition hair by forming a thin, flexible film that improves manageability and shine.
How it works
In a rinse-off product like shampoo or conditioner, Polyquaternium-87's positive charge binds to the negative charges on damaged or dry hair. This creates a smooth coating that seals the cuticle, reducing friction between strands and preventing tangles. The film also helps lock in moisture and reduces flyaway static.
Pros
Lightweight conditioning
Polyquaternium-87 provides smoothness and detangling without the heavy, greasy feel some oils or silicones can leave.
Static control
Its antistatic properties help reduce flyaways, especially in dry or winter conditions, making hair easier to style.
Cons and cautions
Potential buildup
On very fine or low-porosity hair, repeated use without clarifying shampoo may lead to a dulling film over time.
Synthetic origin
As a synthetic polymer, it is not biodegradable and may not appeal to those seeking natural or eco-friendly ingredients.
Best for
- People with normal to dry hair seeking frizz control
- Those who want a lightweight conditioner that won't weigh hair down
Use caution if
- Individuals with extremely fine or low-porosity hair who experience buildup easily
- Anyone looking for a completely biodegradable or natural hair care option
Usage tips
Safety summary
Polyquaternium-87 is considered safe for use in cosmetics at typical concentrations. It has low irritation potential and is not known to be comedogenic. As with all polyquaterniums, avoid contact with eyes.
Research notes
Polyquaternium-87 is a newer member of the polyquaternium family. While specific studies on PQ-87 are limited, the broader class of polyquaterniums has been well-studied for safety and efficacy in hair conditioning. Regulatory bodies like the Cosmetic Ingredient Review (CIR) have reviewed similar polymers and found them safe for use.
Common label clues
- Typical concentration
- 0.1% to 2%
- Regulatory status
- Approved for use in cosmetics in the US, EU, and many other regions. No known restrictions at typical use levels.
- Common uses
- Shampoos, Conditioners, Leave-in treatments, Hair masks
- Environmental note
- Polyquaternium-87 is a synthetic polymer and may not be readily biodegradable. Check product labels for eco-friendly certifications if this is a concern.
Good to know
- Polyquaternium-87 is often used in sulfate-free shampoos to improve feel without harsh detergents.
- It is considered safe for color-treated hair as it does not strip dye.
Common questions
What is Polyquaternium-87 in beauty products?
Polyquaternium-87 is a positively charged polymer that sticks to the negatively charged surface of hair. This helps smooth down the hair cuticle, making hair feel softer, look shinier, and tangle less. It also reduces static electricity, so your hair is less likely to fly away in dry weather. Because it's a larger molecule, it tends to deposit lightly without weighing hair down, making it a good choice for fine or normal hair types.
What does Polyquaternium-87 do in a beauty product?
In a rinse-off product like shampoo or conditioner, Polyquaternium-87's positive charge binds to the negative charges on damaged or dry hair. This creates a smooth coating that seals the cuticle, reducing friction between strands and preventing tangles. The film also helps lock in moisture and reduces flyaway static.
Is Polyquaternium-87 safe for most people?
Polyquaternium-87 is considered safe for use in cosmetics at typical concentrations. It has low irritation potential and is not known to be comedogenic. As with all polyquaterniums, avoid contact with eyes.
Who should be careful with Polyquaternium-87?
Individuals with extremely fine or low-porosity hair who experience buildup easily Anyone looking for a completely biodegradable or natural hair care option
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.