Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Lonza Cosmocil CQ Antimicrobial

Lonza Cosmocil CQ Antimicrobial is a broad-spectrum preservative from Lonza’s Cosmocil® series, featuring chloroxylenol (CQ) as its active ingredient. It delivers effective protection against bacteria, yeasts, and molds in aqueous cosmetic and personal care formulations. Known for stability across pH 3–10 and compatibility with surfactants and polymers, it supports mild, rinse-off, and leave-on products while meeting global regulatory requirements including EU and US standards.
  • lonza cosmocil cq antimicrobial_4007d981
  • lonza cosmocil cq antimicrobial_4007d981

Features Of Lonza Cosmocil CQ Antimicrobial

  1. Broad-spectrum efficacy against bacteria, yeasts, and molds in aqueous systems.

  2. Excellent compatibility with anionic, nonionic, and amphoteric surfactants.

  3. Stable across a wide pH range (pH 4–10) and tolerant to moderate heat and UV exposure.

  4. Low volatility and non-volatile residue, supporting long-term preservative performance.

  5. Designed for low-odor formulations and meets major global regulatory requirements for cosmetic preservation.

Typical Applications Of Lonza Cosmocil CQ Antimicrobial

  1. Shampoos and conditioners.

  2. Liquid hand soaps and body washes.

  3. Makeup removers and facial cleansers.

  4. Hair styling gels and mousses.

  5. Wet wipes and cleansing cloths.

Specifications Of Lonza Cosmocil CQ Antimicrobial

Chemical TypeMixture of chloromethylisothiazolinone (CMI) and methylisothiazolinone (MI)
Product FormAqueous solution
AppearanceColorless to pale yellow clear liquid
pH (1% aqueous solution)2.0 – 4.0
Active Content (CMI + MI)1.5% w/w total isothiazolinones
Density (20°C)1.01 – 1.03 g/cm³
SolubilityCompletely miscible with water
Primary ApplicationsCosmetic and personal care product preservation


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