5-htp is a precursor to serotonin in the brain so basically it's a mood elevator. I used it to sleep but have recently started taking it multiple times ed. It helps keep me calm and makes me a lot nicer to be around on tren. I take met-rx arsenal packs which are their version of animal packs but a little cheaper. They have minerals, fish oil, digestive enzymes, aminos, and a multi. I take 2 of those a day, one in the am and one in the pm with extra fish oil.