Used to get NOW brand's coral calcium powder, but they don't sell the loose powder anymore. This is just as good but wish they offered a larger size since this won't last long. I prefer powder to capsules so I can easily add it food.
The first reason I wanted to buy this product was it is powder. And I think powder absorbs better than other forms. No taste, just mix with water and drink. I used to drink in the mornings with my collagen.
This is my 1st bottle purchased for this brand after another brand was no longer found on iherb. I love powdered version, easier to digest for me.
I do not feel any difference. I exercise 4X a week, so, so long as I do not feel/experience any bone weakness or bone issues, I will continue to buy this brand.
So, I give this product a 3 star for now.