Ingredient review
Quaternium-22
INCI: Quaternium-22
Quaternium-22 is a gentle conditioning ingredient that reduces static and improves feel in hair and skin products, with a low risk of irritation.
In plain English
Quaternium-22 is a synthetic ingredient that helps hair feel soft and smooth by reducing static electricity and forming a thin film on strands. It also adds a silky texture to skincare products without clogging pores or causing irritation for most people.
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
Quaternium-22 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 Quaternium-22.
- 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
Quaternium-22 is a quaternary ammonium compound, a type of positively charged molecule that binds to negatively charged surfaces like hair and skin. It is made in a lab and belongs to the polyquaternium family, known for their conditioning and film-forming properties.
How it works
In a product, Quaternium-22 carries a positive charge that attracts it to the negatively charged surface of hair or skin. It forms a thin, flexible film that smooths the cuticle, reduces static, and improves slip and softness. In skincare, it can help other ingredients spread evenly and leave a non-greasy feel.
Pros
Gentle conditioning
Provides noticeable softness and static control without the heavy buildup of some silicones, making it suitable for fine hair.
Low irritation profile
Has a low risk of skin or eye irritation, so it's often used in products for sensitive skin or daily use.
Cons and cautions
Synthetic origin
Being lab-made, it may not fit a 'natural' or 'clean' beauty preference, even though it is generally well-tolerated.
Potential buildup
With frequent use in leave-in products, it can accumulate on hair, leading to dullness or heaviness over time.
Best for
- People with dry or frizzy hair seeking smoother texture
- Those with normal to oily skin who want a lightweight conditioning ingredient
Use caution if
- Individuals with known sensitivity to quaternary ammonium compounds (rare)
Usage tips
Safety summary
Quaternium-22 is considered safe for use in cosmetics at typical concentrations. It has low acute toxicity and is not a skin sensitizer. The Cosmetic Ingredient Review (CIR) panel has reviewed similar polyquaterniums and found them safe as used.
Research notes
Research on Quaternium-22 is limited, but studies on related polyquaterniums indicate good safety and conditioning performance. No significant adverse effects have been reported in cosmetic use.
Common label clues
- Typical concentration
- 0.1% to 2% in rinse-off products; lower in leave-on formulations
- Regulatory status
- Approved for use in cosmetics in the US, EU, and many other regions, with no specific concentration restrictions for rinse-off products.
- Common uses
- Conditioners, Shampoos, Hair masks, Leave-in treatments, Skincare lotions
- Environmental note
- As a synthetic polymer, it may not be readily biodegradable, though it is used in low concentrations and is not known to accumulate in the environment significantly.
Good to know
- Quaternium-22 is often listed as Polyquaternium-22 on ingredient labels.
- It is compatible with both anionic and cationic surfactants, making it versatile in formulations.
Common questions
What is Quaternium-22 in beauty products?
Quaternium-22 is a synthetic ingredient that helps hair feel soft and smooth by reducing static electricity and forming a thin film on strands. It also adds a silky texture to skincare products without clogging pores or causing irritation for most people.
What does Quaternium-22 do in a beauty product?
In a product, Quaternium-22 carries a positive charge that attracts it to the negatively charged surface of hair or skin. It forms a thin, flexible film that smooths the cuticle, reduces static, and improves slip and softness. In skincare, it can help other ingredients spread evenly and leave a non-greasy feel.
Is Quaternium-22 safe for most people?
Quaternium-22 is considered safe for use in cosmetics at typical concentrations. It has low acute toxicity and is not a skin sensitizer. The Cosmetic Ingredient Review (CIR) panel has reviewed similar polyquaterniums and found them safe as used.
Who should be careful with Quaternium-22?
Individuals with known sensitivity to quaternary ammonium compounds (rare)
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.