nac as glutathione precursor and intracellular B12 processing: Potential role of the NAC Supplement – NUTRAHARMONY

It is represented as the ratio of applied stress over strain in the region of elastic deformation as follows: Young's modulus = Slope 100/Strip thickness Cross head speed Hard and brittle strips demonstrate a high tensile strength and Young's modulus with small elongation

Science 357, 891898

Baykara et al., 2015)

The next day, after a PBS wash, the media was changed into low nutrient media where 2 mM glucose was substituted with equimolar concentration of 13 C-labelled glucose (D-glucose, CK Isotopes) and cultured for another 24 h before extraction

Liu H, Liu Z, Wu Y, Zheng L, Zhang G

Instead of generic glutathione claims, you can reference peer-reviewed research showing superior cellular uptake and retention