Names and synonyms
USP NF Name
Mixture of PEG-6 stearate and PEG-32 stearate
EP Name
Pending
UNII Code (FDA)
8LQC57C6B0 33GX5WQC0M
Preferred Substance Name (FDA)
PEG-6 STEARATE PEG-32 STEARATE
Handbook of Pharmaceutical Excipients
Polyoxylethylene stearates
Chemical description
Consists of a mixture of PEG-6 (MW 300) esters of stearic (C18) acid and PEG-32 (MW 1500) esters of stearic (C18) acid
Key characteristics
Product form
Waxy solid
Melting range (°C)
40.4 – 44.4
HLB
10
Main functionalities
Polyvalent emulsifier compatible with all types of oils and ideal for topical lotions. Stabilizes and improves sensorial and texture properties. Safety of use is inferred by precedence of use in approved pharmaceutical products.
Main formulation technologies
Topical lotion and light emulsion.
