Cetrimide emulsifying wax

Cetrimide is also used as a cleanser and disinfectant for hard contact lenses, although it should not be used on soft lenses as an ingredient of cetrimide emulsifying wax, and in o/w creams (e.g. cetrimide cream). 

Method of manufacture cetrimide emulsifying wax is prepared similarly to nonionic emulsifying wax and contains 90 g of cetostearyl alcohol and 10 g of cetrimide. 

Wax BP, Cetomacrogol Emulsifying Wax BP and Cetrimide Emulsifying Wax (BP) are ready prepared mixtures for extemporaneous use. When these or similar mixtures are used the resultant emulsions are mobile at low emulsifier concentrations and semi-solid at moderate concentrations (about 10% or less of the total weight of the emulsion). The process whereby the surfactant mixture imparts the semi-solid characteristics over a period of time has been termed self-bodying [92-94], the essential feature of which is the introduction of a significant elastic... 

Cetrimide Emulsifying Ointment, B.P.C, Contains 30 per cent of cetrimide emulsifying wax. It can be standardised by the anionic-cationic titration method (b) described above. 

Comments cationic emulsifying wax is claimed to be of particular value in cosmetic and pharmaceutical formulations when cationic characteristics are important. Thus it can be used in medicated creams, germicidal creams, ointments and lotions, hair conditioners, baby creams, and skin care products in which cationic compounds are included. Cationic emulsifying wax is compatible with cationic and nonionic materials, but is incompatible with anionic surfactants and drugs. Additional antimicrobial preservatives should be included in creams. Cetrimide may cause irritation to the eye see Cetrimide. 

---