Spirulina Powder is the most common form of Spirulina in the market and it has, as all the supplements in powder form, the best and the faster absorption rates. Also the price rate is one of the best from all the available forms. Another advantage is that Spirulina Powder is less processed than other forms because it is the basic and the first producing form from Spirulina cultures.
Spirulina Tablets and Spirulina Capsules are the other two common forms of Spirulina in the market which are best if you can't habituate the taste of the powder form. Also we have to mention that Spirulina Capsules have faster absorption rates than Spirulina Tablets because they contain powder in capsule so it is easier to digest them.