They send you a free product for writing these reviews! I wondered why it had all 5 star reviews on here, but I am writing an honest review as I don't lie and i want products to be reviewed honestly so I don't waste my time and money, I care about others and this company needs to know the truth otherwise how can they improve if everyone lies , I had blood work done and i was deficient in multiple things, so I looked online for the best vitamins i could buy , a lot of reviews said that these products give you energy well having fibromyalgia that's one of the things that I am lacking, but my blood work showed that I was low in creatine , I used creatine for almost a month and i went and had labs done again and i was still low in creatine , I was low in vitamin d and potassium as well, I actually ordered 11 different ones and I returned them all except the vitamin d3 and vitamin k2 ones , the other ones did absolutely nothing , I didn't feel good, I didn't feel energized , I still had no energy , I still felt horrible and I still felt extremely fatigued , I just drink water I don't drink any type of caffeine and I had to take extra vitamin b12 to get through my daily fatigue as these vitamins did nothing except irritate my bladder