The quality seems very good. I am Very Happy
I make a green smoothie every morning with spinach or kale, spirulina or chorella, milk and water kefir, chia seeds, glucosamine, chondroitin and MSM, banana, pineapple, stevia and whey protein isolate.  I was using glucosamine, chondroitin and MSM capsules and opening them.  I had looked for a powder mixture, but it was quite expensive.  I ordered the three components from bulk supplements and blended them in the proper proportion.  Now just use one simple measured scoop, and no messing with capsules.  The quality seems very good.  I am Very Happy!.
Rating: 5 stars