They are not interchangeable, though
The difference between the lyophilized powder and capsule forms relates to delivery, stability, and experimental control rather than mechanism
Every LipoEdge product, including the Glutathione API, carries a complete technical data stack: particle size characterisation by dynamic light scattering (DLS), zeta potential measurement, encapsulation efficiency analysis, differential scanning calorimetry (DSC), scanning electron microscopy (SEM), FTIR spectroscopy, and HPLC-validated purity
An NIH meta-study of rodent models found that probiotics had a positive impact on GABA levels, insulin levels, cognitive function, and much more