Swanson Propionyl L-Carnitine with Glycine 60 Vegan Caps 4 Pack

One of the few supplements you know the ingredients are what they say they are because you can feel it work. Amazing supplement, highly recommend giving it a try. The added Glycine seems to make these more potent than the other brand I've tried. I read another review complain about the smell or an upset stomach. Not my experience with it at all. They have no smell, and as the directions say to take on an empty stomach with water so that's how I take it and have never had any adverse effects. I've been taking it daily for about 4 months now and it's by far my most effective supplement. I use consumer labs to check out their lab tests on supplement purity, and they haven't done one for GPLC yet but swanson is a respected brand and I know it's pure because if I forget to take it I certainly notice the difference.