I had never heard of French Oak Extract before, but after reading up about it in the National Library of Medicine, there seems to be actual data backing up its claims. These pills should help with mood, sleep and fatigue and I’m inclined to believe them given French Oak Extract helps your body run more efficiently. I’m hoping that if my body uses less energy internally, I should be able to feel that saved energy in my day to day. Side note, I don’t recommend you take these pills without water, they have a bit of a strong taste and aren’t the smallest things. Also, they are 100% organic, vegan and free of artificial additives so I feel better about experimenting with something new like this.