Diminishing returns are brutal
To prevent polymerisation of each added amino acid, its alpha amino group and reactive side chains are masked with a temporary protecting group
Kyowa is the maker of branded ingredients including Cognizin Citicoline, Pantesin Pantethine, Setria Glutathione, as well as Sustamine L-Alanyl-L-Glutamine
5,21 Furthermore, 24 months treatment with the anti-osteoporotic drugs denosumab (Dmab) and alendronate in T2D lead to improvements of bone mineral density (BMD), but Dmab also induced a modest improvement in glycaemic control when compared to alendronate
Raghavendran V, Marx C, Olsson L, Bettiga M (2020) The protective role of intracellular glutathione in Saccharomyces cerevisiae during lignocellulosic ethanol production