Trimyristin is a triacylglycerol of myristic acid that is found in nutmeg. It has been used to prepare lipophilic and cationic lipophilic micro- and nanoparticles carriers loaded with proteins, peptides, and oligonucleotides. Trimyristin alone and in combination with tyloxapol, has been used as a micro- and nanoparticle carrier of small molecules, including fluorescent dyes, steroids, antiepileptics, antidepressants, NSAIDs, and antifungals. Trimyristin has also been used as a substrate to determine fatty acid selectivity of lipases.