Both have been studied in overlapping contexts (fibroblast proliferation in cited models, tendon repair, muscle injury), but through different enough mechanisms that combination research is scientifically justified
Where as the effects may be similar, The way they influence the bodies hormonal balancing is working on quite different systems
Trehalose + glycerin + hyaluronate maintain water-binding hydration so the surface looks smoother, more supple, and more uniformly reflective
When glutathione levels are healthy, it helps neutralize this oxidative stress and calms the inflammatory response
GLS inhibitors, such as CB-839, have been shown to impair GSC survival by inducing metabolic stress and triggering the amino acid deprivation response pathway, thereby increasing their susceptibility to chemotherapy
The advice to separate them by AM and PM exists for this reason