The pouch is a Nicotine pouch. On! Brand 4mg. Nicotine is VERY addicting but the benefits are huge and the downsides are... Dependence. However, other than dependnce, there are almost no other negative health detriments with nicotine. So nicotine salts (just nicotine, no tobacco) are great. If you really want to try, you can get these pouches in smaller doses. Try one and see if it's for you.
The L-Theanine pairs with caffeine and completely eliminates jitters from the caffeine and adds more focus.
Nicotine only really "works" (gives you a boost) , when ingested in a bigger dose. The gum and pouches just satisfy the dependency but aren't really strong enough to feel imo.