Polyquaternium Cationic Polymers for Shampoo & Hair Conditioner

• Polyquaterniums (abbreviated as PQ, INCI-designated personal care polymer family) are a general term for a class of cationic polymers containing quaternary ammonium groups.
  
  
• They are typically produced via chemical modification of natural polymers (such as cellulose, guar gum or chitosan) or through chemical synthesis. The quaternary cationic centers in their molecular structure can firmly adsorb to negatively charged surfaces such as hair keratin and skin via ionic bonds.
  
  
• Polyquaterniums deliver multiple functions including conditioning, antistatic, film-forming, thickening and styling, and are indispensable key raw materials for formulating shampoos, conditioners, hair masks, styling products, skincare lotions and facial cleansers.
  
  
• As a professional supplier, we provide a full range of high-quality polyquaternium products with guaranteed stable bulk supply capacity.
  
  

1. Cationic Adsorption for Long-Lasting Conditioning

The quaternary cationic centers in polyquaternium molecular structure firmly adsorb to negatively charged hair and skin surfaces via ionic bonds, forming a protective film that delivers long-lasting conditioning, antistatic and softening effects.

2. Wide Range of Grades for Precise Matching

The polyquaternium family has over 40 different grades, each with unique charge density, molecular weight and functional properties. The most suitable grade can be selected precisely according to formulation requirements to achieve optimal conditioning, styling or thickening effects.

3. All-in-One Multifunctional Performance

One single product combines multiple functions including conditioning, antistatic, film-forming, thickening, moisturizing and styling, simplifying formulation design and reducing overall production costs.

4. Excellent Formulation Compatibility

Has good compatibility with anionic, cationic, nonionic and amphoteric surfactants, suitable for a wide range of formulation systems.

5. Full Global Regulatory Compliance

Polyquaternium series products are listed in China's Used Cosmetic Ingredients Directory and global mainstream cosmetic ingredient lists, complying with cosmetic regulatory requirements in all major markets.

1. Hair Care Products (Core Application)

Polyquaterniums are one of the core conditioning ingredients in hair care products:

Shampoo: As a conditioning agent, cationic polymers effectively deposit on the hair surface during cleansing, neutralize negative hair charge, improve wet combing and dry combing performance, and prevent frizz caused by static electricity

Conditioner & hair mask: Provides deep repair, restores damaged hair, and enhances shine and softness

Styling products: Serves as film former and fixative, helps hair maintain styling

Recommended dosage: Typically 0.1% – 5.0% (varies by grade and application)

2. Skincare & Personal Care Products

Skincare lotions / creams: Serves as emollient and thickener, improves product texture and skin feel, delivers smooth, non-greasy application experience

Cleansing / bath products: Provides smooth feel and moisturizing effect, prevents excessive defatting during cleansing

Recommended dosage: Typically 0.1% – 5.0%

3. Other Applications

Contact lens solution: Serves as wetting and lubricating agent

Personal lubricants

Q1: What are Polyquaterniums, and what does "PQ" stand for?

A: Polyquaterniums (abbreviated as PQ) are a general term for a class of cationic polymers containing quaternary ammonium groups. They are an INCI-designated family of personal care polymers, widely used as conditioning, antistatic and film-forming ingredients in cosmetic and personal care formulations.

Q2: How do Polyquaterniums work as hair conditioners?

A: Polyquaterniums work via cationic adsorption mechanism:

Their positively charged quaternary ammonium groups are attracted to negatively charged hair keratin surfaces via ionic bonds

They form a thin protective film on the hair surface, neutralizing static electricity and reducing frizz

They improve wet combing and dry combing performance, leaving hair soft, smooth and shiny

Q3: How many types of Polyquaterniums are there, and how to choose the right grade?

A: There are over 40 different commercial grades of Polyquaterniums, each with unique charge density, molecular weight and functional properties. Selection is based on formulation needs:

Hair conditioning: PQ-7, PQ-10, PQ-39 are the most commonly used

Hair styling: PQ-4, PQ-11, PQ-46 are preferred for film-forming and styling hold

Skincare & mild formulations: PQ-10, PQ-51 are suitable for mild, low-irritation products

Thickening & rheology modification: PQ-7, PQ-37 are used for viscosity adjustment

Q4: What is the recommended usage level of Polyquaterniums in formulations?

A: The standard recommended dosage typically ranges from 0.1% – 5.0%, varying by grade and application:

Shampoo & cleansing products: 0.1% – 2.0%

Conditioner & hair mask: 0.5% – 5.0%

Hair styling products: 0.5% – 3.0%

Skincare & body wash: 0.1% – 2.0%

Always refer to the specific grade's technical data sheet for exact dosage recommendations.

Q5: Are Polyquaterniums compatible with all types of surfactants?

A: Most Polyquaternium grades have excellent formulation compatibility: they work well with anionic, cationic, nonionic and amphoteric surfactants. Some high charge density grades may have limited compatibility with strong anionic systems, so compatibility testing is recommended for specific formulations.

Q6: In which products and industries are Polyquaterniums commonly applied?

A: Polyquaterniums are widely used across personal care and other industries:

Hair care (core application): Shampoos, conditioners, hair masks, styling gels, mousses, hair sprays

Skincare & personal care: Lotions, creams, body washes, facial cleansers, hand soaps

Specialty applications: Contact lens solutions, personal lubricants, household cleaning products

Q7: What are the main benefits of Polyquaterniums for hair and skin?

A: Polyquaterniums deliver multiple benefits for hair and skin:

For hair: Improves wet/dry combing, reduces frizz and static, adds shine, repairs damaged hair, provides styling hold

For skin: Delivers smooth, non-greasy skin feel, prevents excessive defatting during cleansing, provides mild moisturizing effect

For formulations: Acts as thickener, rheology modifier, film former and emulsion stabilizer

Q8: What is the difference between Polyquaternium-7, Polyquaternium-10 and Polyquaternium-39?

A: The three most commonly used grades differ in source and properties:

Polyquaternium-7: Synthetic copolymer, high charge density, excellent conditioning and thickening effect, most cost-effective, widely used in shampoos and conditioners

Polyquaternium-10: Cellulose-derived, milder, better biocompatibility, suitable for sensitive skin and high-end hair care products

Polyquaternium-39: Amphoteric copolymer, better compatibility with anionic surfactants, provides both conditioning and anti-irritation effects, ideal for mild cleansing products

Q9: Are Polyquaterniums approved for use in cosmetics globally?

A: Yes, Polyquaternium series products are widely approved for cosmetic use globally:

Listed in China's Used Cosmetic Ingredients Directory

Approved for use in EU and US cosmetic products

Recognized as safe and effective personal care ingredients by global regulatory authorities

Q10: Do Polyquaterniums have film-forming and hair styling effects?

A: Yes, many Polyquaternium grades have excellent film-forming properties, making them widely used in hair styling products. They form a flexible, transparent film on the hair surface that provides long-lasting styling hold without stiffness or flaking, while also delivering conditioning benefits.

Q11: Are Polyquaterniums safe for hair and skin?

A: Yes, Polyquaterniums have an excellent safety profile for cosmetic use. They are non-irritating, non-sensitizing and have a long history of safe use in personal care products. They remain on the surface of hair and skin without penetrating deep layers, making them suitable for most skin and hair types.