Use of derivatives of benzyloxy-ethylamines as a preservative, METHOD conservation and compositions

The invention relates to the use of compound of formula (I) or salts thereof as a preservative, particularly in a cosmetic, dermatological or pharmaceutical: wherein R1 and R2 are H, methyl, ethyl, phenyl or benzyl . The invention also relates to a method of preserving a cosmetic, dermatological or pharmaceutical composition comprising incorporate said compound of formula (I); as well as the compositions thus obtained.