Polyquaternium-7

Polyquaternium-7 is a water-soluble conditioning agent and film-forming polymer commonly used in cosmetics and personal care products. It belongs to the polyquaternium family (cationic polymers), which are widely used in hair and skin formulations because they reduce static, improve softness, and enhance product texture.

What is Polyquaternium-7

• A synthetic polymer made from acrylamide and diallyldimethylammonium chloride (DADMAC).
• Works by binding to negatively charged hair and skin proteins, leaving a protective layer.
• Cosmetic grade = purified for safe use in skin and hair formulations.

Properties

• Appearance: Clear to pale yellow liquid.
• Texture: Light, water-soluble, non-greasy.
• Charge: Positively charged (cationic), which makes it bond well to hair/skin.
• Key functions: Conditioning, film-forming, antistatic, moisturizing.

Benefits & Uses

Skin Benefits

• Moisturizing → helps retain hydration by forming a thin film.
• Softening → makes skin feel smooth and silky.
• Mild conditioning → improves the spreadability of creams and gels.

Hair Benefits

• Detangling → smooths cuticles, making hair easier to comb.
• Reduces frizz & static → leaves hair sleek and manageable.
• Adds shine → gives a smooth, polished look.
• Protective layer → shields from damage caused by styling, pollution, and washing.

Cosmetic Applications

• Shampoos & conditioners → detangling, softness, and shine.
• Hair serums & leave-ins → frizz control and smoothness.
• Body washes & shower gels → adds silky after-feel.
• Lotions & creams → improves spreadability and hydration.
• Styling products → light hold + conditioning.

Recommended Usage

• Shampoos/conditioners: 0.5–5%.
• Hair serums/leave-ins: 0.5–2%.
• Body washes/lotions: 0.5–2%.
• Compatible with surfactants (good for cleansing + conditioning in one).

Safety & Precautions

• Considered safe and non-irritating in cosmetic concentrations.
• Not natural — it’s a synthetic polymer.
• Avoid overuse in leave-in products (too much can cause build-up).
• Store in a cool, dry place away from direct sunlight.

✅ Quick DIY – Silky Hair Detangler Spray

• 95ml distilled water
• 3ml glycerin
• 1ml Polyquaternium-7
• 1ml panthenol (pro-vitamin B5)

Pour into a spray bottle → light detangler & shine booster.