The present invention relates to a functional substance-releasing agent containing a silicic acid ester compound represented by formula (1) below, a process for producing the functional substance-releasing agent, and a composition containing the functional substance-releasing agent. wherein R 1 represents a residue of an alcohol which results from removal of one hydroxyl group therefrom, the alcohol being selected from a functional alcohol having a log P value of 2.0 or less and an alcohol having a log P value of 2.1 or more, a plurality of R 1 s may be the same or different, provided that the silicic acid ester compound has, in one molecule, at least one residue resulting from removal of one hydroxyl group from a functional alcohol having a log P value of 2.0 or less and at least one residue resulting from removal of one hydroxyl group from an alcohol having a log P value of 2.1 or more.
