I took LCF (Dr's Best) for the first time yesterday and had a pretty wild time of it. I tend to stay pretty sparse with vitamins and supplements in general, especially on the days trying something new. So, yesterday this is what I took: 8am: Vitamin C - 1000mg, D3 - 5000 IU, L-Carnitine Fumarate - 75mg Breakfast (8am): 4 slices of bacon, 3 eggs, kale smoothie (kale, pineapple, coconut water, strawberries) I'm guesstimating on the 75mg number. I cracked open a capsule and poured just a little bit out into a fresh veggie cap. I'm guessing it was somewhere south of 100mg and north of 50mg. Not much. Starting around 9am I felt the LCF kicking in. It was a strange sort of wired feeling, but more mental than physical. It got more and more intense. By 2pm I was seriously glad that I hadn't taken more than I did because it was really unpleasant. My skin began to itch mildly and I was pretty agitated. This went on until about 6pm, and then things started to calm down. By 8pm I actually felt really, really good. My skin still itched (actually it still itches today a little), but my physical energy was good (very little fatigue) and the brain fog was much improved. I had a hard time falling to sleep initially, but after I did I slept the whole night, which is not usual for me. I normally wake up at 3am to 4am and have trouble falling back to sleep. So, all in all it was a mixed bag. I hated the way it made me feel at first but loved how I felt afterwards.