Fuente: WIPO "apiculture" The invention refers to compositions comprising: (a) from 20% to 40% by weight of 5-Isopropil-2-metilfenol (carvacrol); (b) from 20% to 38% by weight of 1,3,3-Trimethyl-2-oxabicyclo[2.2.2]octane (eucalyptol); (c) from 21% to 38% by weight of 4-Methyl-1-(propan-2-yl)cyclohex-3-en-1-ol (terpinen-4-ol); and (d) optionally, a further active ingredient, being the sum of ingredients up to 100% by weight. The compositions have a strong biocidal activity and are non-toxic. The invention also refers to products comprising the compositions and uses thereof.