Dirt, sweat, sunscreen, and insect repellent on your skin create contamination risks that dont exist in a bathroom at home
While they both play a role in blood sugar control, it's important to understand how they work and if using them together is beneficial
Can I just-
doi:10.1073/pnas.95.5.2122
Researchers sought to investigate the efficacy of L-citrulline and/or GSH on markers indicative of NO synthesis and found that daily oral supplementation with 200mg of Setria Glutathione and 2g of L-citrulline enhanced levels of nitric oxide, concluding that Setria Glutathione not only enhanced blood levels of NO, but may sustain levels by preventing its oxidative reaction when ingested in combination with L-citrulline
So we know that most people lose, uh, you know, uh, a reasonably high percentage of one to 5% every decade of life of muscle mass