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Betaine, also known as trimethylglycine, is a naturally occurring metabolite that serves as a methyl donor and osmolyte in the body

Using regular sterile water (no preservative), shaking instead of swirling, or storing at room temp degrades the peptide fast

doi: 10.1016/S0021-9258(18)70011-2 46 van RaamBJSluiterWde WitERoosDVerhoevenAJKuijpersTW

Quick Absorption: The non-greasy, fast-absorbing texture ensures easy application, allowing you to continue with your daily activities without any discomfort

2006;291:R674R683

But as levels of all of these nucleotides and amino acids rise, together they slow glutamine synthetase more and more