A pharmaceutical or cosmetic composition for topical application comprises, in a physiologically acceptable support, the combination of benzoyl peroxide and at least one quaternary ammonium lipophilic salicylate having general formula (I): ##STR1## where: (i) R.sub.1, R.sub.2, R.sub.3 and R.sub.4 may be identical or different, representing a substituted or interrupted alkyl or cycloalkyl radical; (ii) R.sub.3 and/or R.sub.4 represent(s) the group: R.sub.8 --OC.sub.2 H.sub.3 R.sub.7 ].sub.n [OCH.sub.2 CHOH--CH.sub.2 ].sub.p where O.ltoreq.n.ltoreq.4 and p is 0 or 1; R.sub.8 represents H or an alkyl, alkenyl, alkylcycloalkyl or alkylanyl radical; (iii) R.sub.4 represents an alkylenephenyl radical; (iv), (v): R.sub.1 and R.sub.2 may form an aromatic or nonaromatic saturated or unsaturated heterocycle; (vi) R.sub.1, R.sub.2 and R.sub.3 together with nitrogen, may form polycyclic derivatives; and R.sub.5 represents a group having the formula: ##STR2## where n may vary from 0 to 10.
一种用于局部应用的药用或化妆品组合物,包括在生理学上可接受的载体中,苯甲酰过氧化物和至少一种季
铵脂溶性
水杨酸盐的组合物,该
水杨酸盐具有通式(I):##STR1##其中:(i)R.sub.1,R.sub.2,R.sub.3和R.sub.4可以相同或不同,代表被取代或中断的烷基或环烷基基团;(ii)R.sub.3和/或R.sub.4代表以下基团:R.sub.8--OC.sub.2H.sub.3R.sub.7].sub.n[OCH.sub.2CHOH--CH.sub.2].sub.p其中O≤n≤4,p为0或1;R.sub.8代表H或烷基,烯基,烷基环烷基或烷基基团;(iii)R.sub.4代表烷基苯基基团;(iv),(v):R.sub.1和R.sub.2可以形成芳香族或非芳香族饱和或不饱和杂环;(vi)R.sub.1,R.sub.2和R.sub.3与氮一起,可以形成多环衍
生物;R.sub.5代表具有以下式子的基团:##STR2##其中n可以从0到10变化。