| http://www.w3.org/ns/prov#value | - We have now discovered that the topical application to acneic skin of 2-hydroxyoctanoic acid, together with a neutralising agent other than sodium hydroxide which is used to increase slightly the pH value of the composition, surprisingly holds the pH at the skin surface at a low value for a relatively long time without the development of skin irritation such that the inhibitory effect on skin micr
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