N,N-dimethylglycine or dimethylglycine (DMG) is an amino acid derivative found in the cells of all plants and animals and can be obtained in the diet in small amounts from grains and meat. The human body produces DMG when metabolizing choline into glycine. DMG has been found acting at glycine binding site of the N-methyl-d-aspartate receptor (NMDAR). DMG has had wide acceptance as a nonfuel nutrient; presumably it enhances oxygen utilization by tissue and complexes free radicals. There were published studies, which have shown little to no difference between DMG treatment and placebo in autism spectrum disorders and the same no effect was observed in case of investigated DMG for epilepsy. This compound was also suggested to use to improve the athletic performance enhancer, but this usage was ineffective as well.

Piperonylic acid is a natural molecule contains in Piper nigrum and bearing a methylenedioxy function that closely mimics the structure of trans-cinnamic acid. Purified piperonylic acid is water-soluble, secure and nontoxic. Recent researchers have verified that piperonylic acid not only inhibited the growth of cancer cells and regulated the immunity, but also improved the lipid metabolism, enhanced endothelial function, and resisted atherosclerotic proliferation. However, related experimental studies are still limited.

N,N-dimethylglycine or dimethylglycine (DMG) is an amino acid derivative found in the cells of all plants and animals and can be obtained in the diet in small amounts from grains and meat. The human body produces DMG when metabolizing choline into glycine. DMG has been found acting at glycine binding site of the N-methyl-d-aspartate receptor (NMDAR). DMG has had wide acceptance as a nonfuel nutrient; presumably it enhances oxygen utilization by tissue and complexes free radicals. There were published studies, which have shown little to no difference between DMG treatment and placebo in autism spectrum disorders and the same no effect was observed in case of investigated DMG for epilepsy. This compound was also suggested to use to improve the athletic performance enhancer, but this usage was ineffective as well.