1. A composition containing one or more derivatives of the starting essential oil compounds selected from aldehydes, ketones, alcohols, phenolic compounds or acids for use in personal care compositions in an amount of at least about 0.02% wt. , to ensure effective antimicrobial activity. 2. The composition according to claim 1, characterized in that the said one or more derivatives are selected from acetals of the original essential oil-based aldehydes or ketones; esters or ethers of the starting essential oil alcohols or phenolic compounds; esters of the original essential oil acids or mixtures thereof. 3. The composition according to claim 1, characterized in that the starting essential oil-based aldehydes or ketones are selected from citral, neral, geranial, cinnamaldehyde, p-anisaldehyde, vanillin, ethyl vanillin, heliotropin, carvon, menton, or a mixture thereof. The composition according to claim 1, characterized in that the starting essential oil-alcohol alcohols or phenolic compounds are selected from eugenol, isoeugenol, dihydroevgenol, carvacrol, carveol, geraniol, nerol, thymol, vanillin alcohol, heliotropic alcohol, p-anise alcohol, cinnamon β-ionol or mixtures thereof. 5. The composition according to claim 1, characterized in that the starting essential oil acids are selected from p-anisic acid, cinnamic acid, vanillic acid, geranium acid or mixtures thereof. The composition according to claim 1, characterized in that it is intended for use in the compositions of personal care products in amounts from about 0.02% to about 5.0% by weight. The composition according to claim 2, characterized in that the said one or more derivatives of a mixture1. Композиция, содержащая одно или несколько производных исходных эфирно-масличных соединений, выбранных из альдегидов, кетонов, спиртов, фенольных соединений или кислот, для использования в композициях средств для личной гигиены в количестве, составляющем по меньшей мере примерно 0,02% мас., для обеспечения эффектив