Methyl-β-cyclodextrin is a randomly methylated form of the cyclic oligosaccharide β-cyclodextrin, with improvement on the aqueous solubility of various compounds.

Linoleic acid is an essential fatty acid of most vegetable oils and animal fats, and a prostaglandin precursor.

Arachidonic Acid is an unsaturated, essential fatty acid. It is found in animal and human fat as well as in the liver, brain, and glandular organs, and is a constituent of animal phosphatides. It is formed by the synthesis from dietary linoleic acid and is a precursor in the biosynthesis of prostaglandins, thromboxanes, and leukotrienes.

γ-Cyclodextrin is an endogenous metabolite.

β-Cyclodextrin is a cyclic polysaccharide composed of seven units of glucose (α-D-glucopyranose) linked by α-(1,4) type bonds. β-Cyclodextrin has often been used to enhance the solubility of drugs. β-Cyclodextrin has anti-influenza virus H1N1 activities.

HP-β-CD is used to improve the solubility of lipophilic drugs. It is also an inhibitor of amyloid-β aggregation and Aβ-induced toxicity.

Cholesterol is the major sterol in mammals, and its importance in fundamental cellular processes is becoming more appreciated.