The invention relates to a method for obtaining β-amino alcohols, in which the following steps are performed using amines and a diol/water mixture: adding the diol/water mixture; subsequently, carrying out the reaction at a temperature between 130 and 200°C, for between 2 and 24 hours; filtering the reaction product, comprising β-amino alcohol, using at least one first hexane extraction method, followed by at least one second ethyl acetate extraction method, in order to purify the resulting β-amino alcohol.