Love your work frank, but you need to improve on this...
#1 The magnesium glycinate is clearly not soluble in water. I like how you just use spring water, but you may consider some other solvent (MCT, olive, ethanol). The magnesium completely settles to the bottom and it has to be shaken very hard. Because the bottle is brown, someone might not notice and take way too much from the bottom. And less may be absorbed from the stomach when it's not solubized.
#2 Serving size is 5 full droppers and only 12 per container. I'm surprised that I only get 12 servings. If you can't increase the concentration with the oil, then just make a bigger bottle.