Disclosed is a non-aqueous, structured, gel-form composition containing: (a) a low molecular mass N-acyl glutamic acid diamide having a straight-chain alkyl group; (b) a low molecular mass N-acyl glutamic acid diamide having a branched-chain alkyl group; (c) at least one gel-promoting solvent; (d) at least one silicone elastomer; (e) at least one solvent capable of solubilizing the silicone elastomer; and (f) at least one active ingredient, wherein the composition has a hardness value ranging from about 30 to about 300 gf, a melting point of about 50° C. or higher, does not require use of wax as a structuring agent, and has a silky feeling when applied onto a keratinous substrate. Methods of making and using the compositions are also provided.