How to Use AccessQUAT PQ-550 in Your Formulations
Understanding AccessQUAT PQ-550
AccessQUAT PQ-550, or Polyquaternium-7, is a go-to ingredient when you want silky conditioning and a smooth, luxurious feel in hair and skin products. Because it carries a positive (cationic) charge, it is attracted to the slightly negative charge of hair and skin. This attraction allows it to form a thin, uniform film that delivers noticeable benefits.
For hair, this film helps to smooth and align the cuticle, improving wet and dry combing, reducing frizz and static, and enhancing softness—without heavy buildup. In facial and body cleansers, it imparts a moisturized, conditioned after-feel, reducing post-wash tightness while also helping to stabilize foam for a richer, creamier lather.
For the chemistry-minded: Polyquaternium-7 is a copolymer of acrylamide and diallyldimethylammonium chloride (DADMAC). Its cationic nature confers high substantivity to keratin surfaces, enabling conditioning effects that persist even after rinse-off.
Formulation Tips
Typical usage is 0.2% for a light touch up to 5% for intensive conditioning. For most shampoos and conditioners, 1–3% is an excellent starting point. AccessQUAT PQ-550 is a water-soluble liquid that can be added directly to the water phase in both cold-process and hot-process systems. Mix until fully incorporated before proceeding.
It is highly compatible with non-ionic and amphoteric surfactants (e.g., Cocamidopropyl Betaine). While it generally works well with many anionic surfactants, high concentrations of certain anionics can sometimes cause haze—so bench test to confirm clarity if a transparent product is desired. Best performance is typically observed between pH 4 and 9.
Key Formulation Benefits:
- Superior Detangling & Combability: Noticeably reduces combing force on wet and dry hair, minimizing friction and helping prevent breakage.
- Luxurious Skin & Hair Feel: Delivers a smooth, velvety, non-greasy finish that elevates product sensory.
- Effective Frizz & Static Control: Forms a lightweight film that tames flyaways and helps maintain a polished look even in humidity.
- Enhanced Foam Quality: Creates a richer, denser, and more stable lather in shampoos and body washes.
- No Buildup: Provides lasting conditioning benefits without weighing hair down.
- Versatile & Easy to Use: Water-soluble and simple to incorporate across shampoos, conditioners, gels, cleansers, and emulsions.