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Illustration of Curoxyl 42 white fluid in a clear glass beaker

Curoxyl® 42 – Benzoyl Peroxide Gel 40%

£14.99 - £290.00
£14.99
£14.99 - £290.00
£14.99

INCI Name: Water (and) Benzoyl Peroxide

CAS Number: 7732-18-5 (and) 94-36-0

Description

Curoxyl® 42 is a patented, micronised 40% benzoyl peroxide dispersion supplied as a USP gel. The fine particle size gives a smoother feel and lower irritancy than conventional benzoyl peroxide, and the gel form is easy to handle without grinding or special safety equipment.

Key Properties

  • 40% benzoyl peroxide
  • Micronised particles
  • Smooth, easy-to-handle gel
  • No grinding needed

Applications

  • Formulation and R&D for licensed medicinal products
  • Medicated pet shampoos
  • Professional artificial nail systems

How to Use

  • Disperse into the formulation with gentle mixing
  • Store cool and away from heat

Regulatory Notes

Under UK and EU cosmetics rules, benzoyl peroxide is only permitted in professional artificial nail systems (up to 0.7% after mixing). Anti-acne creams, washes and gels containing benzoyl peroxide are regulated as medicines and need the appropriate licence. This product is supplied to qualified formulators and manufacturers.

Technical Details

* Further documentation available with purchase

Formulation Guide

Incorporation of Curoxyl™42 in formulations:

Oil-in-water emulsions: After the two phases have been combined and the emulsion has formed, cool the batch to 40°C -45°C. Slowly mix in Curoxyl™42 with propeller agitation and continue cooling and mixing.

Gel-based formulations: After polymer dispersion at 75°C-85°C, add desired ingredients, then add neutralizer if required: KOH or NaOH. When the batch reaches 45°C, add Curoxyl™42 with mixing and cool to 25°C.

Note: Benzoyl peroxide is a white powder that is insoluble in water, therefore only opaque water-based gel formulations are possible.

Cold process: This is easily used in cold processing of formulations where no heat is needed.

Note: When using a cold process, a temperature of 25°C is recommended.

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