This invention relates to an extract of Helichrysum gymnocephalum, a premixture comprising such an extract and a support, and a cosmetic or dermatological composition comprising such an extract or premixture as an active principle, for their use in the treatment and/or the prevention of inflammatory dermatoses.本發明係有關於一種馬達加斯加蠟菊萃取物、一種包含該萃取物及撐體的預混合物、以及一種包含該萃取物或預混合物作為活性成分之化妝品或皮膚學上組成物,供用於治療及/或預防發炎性皮膚病。