| http://www.w3.org/ns/prov#value | - In general, the quantity of binding or thickening agents will be widely variable, according to the nature of the other components and may vary from 1% up to 30% or more.Humectants may include such compounds as glycerol, sorbitol or propylene glycol; these substances may constitute a relatively large proportion of the composition, for example 10-30%.Preservatives which may be present includes such
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