Basic infomation:

INCI name: Polyquaternium-7

Trade name: Yeser® PQ-7

CAS No.: 26590-05-6

Molecular formula: (C8H16ClN)n(C3H5NO)m

Source: 3rd-party commissioned manufacturing

Standard executed:  Q/YS PQ7-2022

Packaging: in 200KG plastic drums

Polyquaternium-7, commonly called PQ-7 for short, is a cationic polyelectrolyte widely used in hair care and skin care products, for its anti-static and film-forming properties. It is one of the most widely produced and consumed cationic copolymers today. Similar to PQ-10, PQ-7 features excellent compatibility with anionic surfactant systems. It doesn't bond with anionic surfactants and keeps the compound clear and homogeneous. 

In hair care, it improves lubricity significantly and gives the slip to the hair for easier wet-combing, and provides suppleness and sheen to the hair after drying; In skin care, it forms a protective thin film on the skin and helps retain moisture and other functional ingredients. 

Yeser Chemicals partners with leading polyquaternium producers through a Third-party Toll-manufacturing Agreement. We supply Polyquaternium-7 with top quality, at a competitive price, and with fast delivery.

Features & Benefits: 

  • Non-toxic, no irritation and allergy to the skin, high safety.
  • Good compatibility, high stability, chemical inertness, no influence on other components of cosmetics, especially the active ingredients.
  • It has good lubricating properties and forms a uniform waterproof protective film after being applied to the skin.
  • Forms a clear, glossy and tough film with excellent curl retention.
  • Improves the dry and wet combability of hair, keeping it shiny, soft, elastic and easy to comb.

Stability/Shelf life:

Stable at a wide pH range, except in strong acid and alkali.

Pack in tight-closed containers(drums or tanks); Store in a dry, ventilated and cool place; Kept away from direct sun and water.

Under proper storage conditions, the shelf life of Yeser® PQ-7 is 12 months.

Recommended dosage:

The recommended dosage of Yeser® PQ-7 in hair and skin care products is 1.0%-6.0%.

Items Standards
Conditioning agent
Appearance (25℃)
Colorless to light yellow transparent sticky liquid
Characteristic odor
pH value (10% aqueous solution, 25℃)
5.5 ~ 7.5
Viscosity (25℃), mPa•s
8000 ~ 16000
Solid content, %
9.0 ~ 10.5
Residual acrylamide content, mg/kg
Transparent Moisturizing Shampoo Formula
Ingredient Wt, % (as is) Function
Primary Surfactant
Secondly Surfactant
Secondary Surfactant
Secondary Surfactant
Secondary Surfactant
Cooling agent
Moisturizer, Antisensitizer
Fragrance, Dye, Preservatives
Deionized water
q.s. to 100%
Solvent, Carrier
q.s. to achieve desired pH(5.0-7.0)
pH Adjuster

More are coming soon...

Frequently Asked Questions

We don’t produce Polyquaternium-10 (PQ-7) by ourselves, yet we are not simply trading it. 

We have signed a Third-party Toll-manufacturing Agreement with a leading producer who contract manufactures Yeser® PQ-7 for us, as per our demand and requirements. 

Together with our contract manufacturer, Yeser Chemicals supplies top-quality Yeser® Dimethicone at a competitive price, with a capacity of 1,000 MT/ Month. 

Polyquaternium-7 is approved for use in hair and skin care products by the U.S. Food and Drug Administration (FDA) and Cosmetic Ingredient Review (CIR) with no known risks.

It is non-irritating and non-harmful to the skin based on experimental observations.

Typically, our Minimum Order Quantity(MOQ) for Yeser® PQ-7 is 3000Kg.

And we provide LCL mix loading services with other ingredients such as CAPBSLESCAOAOS, PQ-10 etc. 

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