They try to get by on caffeine, a shake, and willpower
If your goal is evidence-based metabolic support, the data points to oral supplements at studied doses rather than transdermal patches at sub-therapeutic doses

Likewise, energy metabolism and appetite regulation could be altered in a therapeutic direction ( The rationale for dual-receptor agonists for GLP-1 and GIP In healthy volunteers, infusions of GLP-1 and GIP had additive effects on the stimulation of insulin secretion ( In vitro receptor binding studies explored structural requirements for GLP-1 and GLP-1/GIP chimeric peptides regarding their affinity towards the GLP-1 receptor in insulinoma cell lines ( Figure 1 gives an overview of the physiological actions of GLP-1 and GIP on various organ systems ( Table 1 ( Figure 1 Table 1 Effects of GIP receptor agonism or antagonism on glycemic control, body weight, and energy balance in animal models of obesity and diabetes (modified according to Campbell and Nauck) ( Prevention of diet-induced obesity: healthy, nonobese animals at baseline receiving experimental treatment while receiving a high-fat diet

Yes, L-Glutathione and NAD+ are often discussed together in longevity and cellular health research because they target complementary aspects of cell function
Not for human use, medical, or diagnostic applications