Hyperhidrosis sufferer here...turns out magnesium supplementation is actually very helpful for dealing with Hyperhidrosis and Amandean Magnesium Complex is very effective at reducing Hyperhydrosis (excessive sweating in hands, feet, underarms etc.). I chose this brand because of how impressed I was with the vegan Omega 3 and I was originally just searching for magnesium to increase my energy levels. After I started taking this, my sweating went to negligible levels. I started trying to find what could've caused my sweating to stop after I suffered my whole life (I'm mid-30s male). That's when I found the connection between hyper-hidrosis and magnesium deficiency. In my mind, seeing a benefit I didn't even know was possible speaks to the efficacy and quality of this supplement. I didn't begin using it thinking it would have any effect on my sweating and yet it completely stopped it so I have a hard time believing that could be placebo. I can't recommend this product enough!